991671660

素因数分解:

$2^2\times 3^4\times 5^1\times 7^1\times {\mathrm{157}}^1\times {\mathrm{557}}^1$

素因数の和:742

約数の個数: 240

約数和(自身を含む): 3584395584

約数和(自身を除く): 2592723924

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 27, 28, 30, 35, 36, 42, 45, 54, 60, 63, 70, 81, 84, 90, 105, 108, 126, 135, 140, 157, 162, 180, 189, 210, 252, 270, 314, 315, 324, 378, 405, 420, 471, 540, 557, 567, 628, 630, 756, 785, 810, 942, 945, 1099, 1114, 1134, 1260, 1413, 1570, 1620, 1671, 1884, 1890, 2198, 2228, 2268, 2355, 2785, 2826, 2835, 3140, 3297, 3342, 3780, 3899, 4239, 4396, 4710, 5013, 5495, 5570, 5652, 5670, 6594, 6684, 7065, 7798, 8355, 8478, 9420, 9891, 10026, 10990, 11140, 11340, 11697, 12717, 13188, 14130, 15039, 15596, 16485, 16710, 16956, 19495, 19782, 20052, 21195, 21980, 23394, 25065, 25434, 28260, 29673, 30078, 32970, 33420, 35091, 38990, 39564, 42390, 45117, 46788, 49455, 50130, 50868, 58485, 59346, 60156, 63585, 65940, 70182, 75195, 77980, 84780, 87449, 89019, 90234, 98910, 100260, 105273, 116970, 118692, 127170, 140364, 148365, 150390, 174898, 175455, 178038, 180468, 197820, 210546, 225585, 233940, 254340, 262347, 296730, 300780, 315819, 349796, 350910, 356076, 421092, 437245, 445095, 451170, 524694, 526365, 593460, 612143, 631638, 701820, 787041, 874490, 890190, 902340, 1049388, 1052730, 1224286, 1263276, 1311735, 1574082, 1579095, 1748980, 1780380, 1836429, 2105460, 2361123, 2448572, 2623470, 3060715, 3148164, 3158190, 3672858, 3935205, 4722246, 5246940, 5509287, 6121430, 6316380, 7083369, 7345716, 7870410, 9182145, 9444492, 11018574, 11805615, 12242860, 14166738, 15740820, 16527861, 18364290, 22037148, 23611230, 27546435, 28333476, 33055722, 35416845, 36728580, 47222460, 49583583, 55092870, 66111444, 70833690, 82639305, 99167166, 110185740, 141667380, 165278610, 198334332, 247917915, 330557220, 495835830, 991671660]

約数ペア:

[(1, 991671660), (2, 495835830), (3, 330557220), (4, 247917915), (5, 198334332), (6, 165278610), (7, 141667380), (9, 110185740), (10, 99167166), (12, 82639305), (14, 70833690), (15, 66111444), (18, 55092870), (20, 49583583), (21, 47222460), (27, 36728580), (28, 35416845), (30, 33055722), (35, 28333476), (36, 27546435), (42, 23611230), (45, 22037148), (54, 18364290), (60, 16527861), (63, 15740820), (70, 14166738), (81, 12242860), (84, 11805615), (90, 11018574), (105, 9444492), (108, 9182145), (126, 7870410), (135, 7345716), (140, 7083369), (157, 6316380), (162, 6121430), (180, 5509287), (189, 5246940), (210, 4722246), (252, 3935205), (270, 3672858), (314, 3158190), (315, 3148164), (324, 3060715), (378, 2623470), (405, 2448572), (420, 2361123), (471, 2105460), (540, 1836429), (557, 1780380), (567, 1748980), (628, 1579095), (630, 1574082), (756, 1311735), (785, 1263276), (810, 1224286), (942, 1052730), (945, 1049388), (1099, 902340), (1114, 890190), (1134, 874490), (1260, 787041), (1413, 701820), (1570, 631638), (1620, 612143), (1671, 593460), (1884, 526365), (1890, 524694), (2198, 451170), (2228, 445095), (2268, 437245), (2355, 421092), (2785, 356076), (2826, 350910), (2835, 349796), (3140, 315819), (3297, 300780), (3342, 296730), (3780, 262347), (3899, 254340), (4239, 233940), (4396, 225585), (4710, 210546), (5013, 197820), (5495, 180468), (5570, 178038), (5652, 175455), (5670, 174898), (6594, 150390), (6684, 148365), (7065, 140364), (7798, 127170), (8355, 118692), (8478, 116970), (9420, 105273), (9891, 100260), (10026, 98910), (10990, 90234), (11140, 89019), (11340, 87449), (11697, 84780), (12717, 77980), (13188, 75195), (14130, 70182), (15039, 65940), (15596, 63585), (16485, 60156), (16710, 59346), (16956, 58485), (19495, 50868), (19782, 50130), (20052, 49455), (21195, 46788), (21980, 45117), (23394, 42390), (25065, 39564), (25434, 38990), (28260, 35091), (29673, 33420), (30078, 32970)]