87521220

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{157}}^1\times {\mathrm{163}}^1$

素因数の和:354

約数の個数: 144

約数和(自身を含む): 282959040

約数和(自身を除く): 195437820

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 19, 20, 30, 36, 38, 45, 57, 60, 76, 90, 95, 114, 157, 163, 171, 180, 190, 228, 285, 314, 326, 342, 380, 471, 489, 570, 628, 652, 684, 785, 815, 855, 942, 978, 1140, 1413, 1467, 1570, 1630, 1710, 1884, 1956, 2355, 2445, 2826, 2934, 2983, 3097, 3140, 3260, 3420, 4710, 4890, 5652, 5868, 5966, 6194, 7065, 7335, 8949, 9291, 9420, 9780, 11932, 12388, 14130, 14670, 14915, 15485, 17898, 18582, 25591, 26847, 27873, 28260, 29340, 29830, 30970, 35796, 37164, 44745, 46455, 51182, 53694, 55746, 59660, 61940, 76773, 89490, 92910, 102364, 107388, 111492, 127955, 134235, 139365, 153546, 178980, 185820, 230319, 255910, 268470, 278730, 307092, 383865, 460638, 486229, 511820, 536940, 557460, 767730, 921276, 972458, 1151595, 1458687, 1535460, 1944916, 2303190, 2431145, 2917374, 4376061, 4606380, 4862290, 5834748, 7293435, 8752122, 9724580, 14586870, 17504244, 21880305, 29173740, 43760610, 87521220]

約数ペア:

[(1, 87521220), (2, 43760610), (3, 29173740), (4, 21880305), (5, 17504244), (6, 14586870), (9, 9724580), (10, 8752122), (12, 7293435), (15, 5834748), (18, 4862290), (19, 4606380), (20, 4376061), (30, 2917374), (36, 2431145), (38, 2303190), (45, 1944916), (57, 1535460), (60, 1458687), (76, 1151595), (90, 972458), (95, 921276), (114, 767730), (157, 557460), (163, 536940), (171, 511820), (180, 486229), (190, 460638), (228, 383865), (285, 307092), (314, 278730), (326, 268470), (342, 255910), (380, 230319), (471, 185820), (489, 178980), (570, 153546), (628, 139365), (652, 134235), (684, 127955), (785, 111492), (815, 107388), (855, 102364), (942, 92910), (978, 89490), (1140, 76773), (1413, 61940), (1467, 59660), (1570, 55746), (1630, 53694), (1710, 51182), (1884, 46455), (1956, 44745), (2355, 37164), (2445, 35796), (2826, 30970), (2934, 29830), (2983, 29340), (3097, 28260), (3140, 27873), (3260, 26847), (3420, 25591), (4710, 18582), (4890, 17898), (5652, 15485), (5868, 14915), (5966, 14670), (6194, 14130), (7065, 12388), (7335, 11932), (8949, 9780), (9291, 9420)]