28617960

素因数分解:

$2^3\times 3^1\times 5^1\times 7^2\times {\mathrm{31}}^1\times {\mathrm{157}}^1$

素因数の和:216

約数の個数: 192

約数和(自身を含む): 103749120

約数和(自身を除く): 75131160

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 31, 35, 40, 42, 49, 56, 60, 62, 70, 84, 93, 98, 105, 120, 124, 140, 147, 155, 157, 168, 186, 196, 210, 217, 245, 248, 280, 294, 310, 314, 372, 392, 420, 434, 465, 471, 490, 588, 620, 628, 651, 735, 744, 785, 840, 868, 930, 942, 980, 1085, 1099, 1176, 1240, 1256, 1302, 1470, 1519, 1570, 1736, 1860, 1884, 1960, 2170, 2198, 2355, 2604, 2940, 3038, 3140, 3255, 3297, 3720, 3768, 4340, 4396, 4557, 4710, 4867, 5208, 5495, 5880, 6076, 6280, 6510, 6594, 7595, 7693, 8680, 8792, 9114, 9420, 9734, 10990, 12152, 13020, 13188, 14601, 15190, 15386, 16485, 18228, 18840, 19468, 21980, 22785, 23079, 24335, 26040, 26376, 29202, 30380, 30772, 32970, 34069, 36456, 38465, 38936, 43960, 45570, 46158, 48670, 58404, 60760, 61544, 65940, 68138, 73005, 76930, 91140, 92316, 97340, 102207, 115395, 116808, 131880, 136276, 146010, 153860, 170345, 182280, 184632, 194680, 204414, 230790, 238483, 272552, 292020, 307720, 340690, 408828, 461580, 476966, 511035, 584040, 681380, 715449, 817656, 923160, 953932, 1022070, 1192415, 1362760, 1430898, 1907864, 2044140, 2384830, 2861796, 3577245, 4088280, 4769660, 5723592, 7154490, 9539320, 14308980, 28617960]

約数ペア:

[(1, 28617960), (2, 14308980), (3, 9539320), (4, 7154490), (5, 5723592), (6, 4769660), (7, 4088280), (8, 3577245), (10, 2861796), (12, 2384830), (14, 2044140), (15, 1907864), (20, 1430898), (21, 1362760), (24, 1192415), (28, 1022070), (30, 953932), (31, 923160), (35, 817656), (40, 715449), (42, 681380), (49, 584040), (56, 511035), (60, 476966), (62, 461580), (70, 408828), (84, 340690), (93, 307720), (98, 292020), (105, 272552), (120, 238483), (124, 230790), (140, 204414), (147, 194680), (155, 184632), (157, 182280), (168, 170345), (186, 153860), (196, 146010), (210, 136276), (217, 131880), (245, 116808), (248, 115395), (280, 102207), (294, 97340), (310, 92316), (314, 91140), (372, 76930), (392, 73005), (420, 68138), (434, 65940), (465, 61544), (471, 60760), (490, 58404), (588, 48670), (620, 46158), (628, 45570), (651, 43960), (735, 38936), (744, 38465), (785, 36456), (840, 34069), (868, 32970), (930, 30772), (942, 30380), (980, 29202), (1085, 26376), (1099, 26040), (1176, 24335), (1240, 23079), (1256, 22785), (1302, 21980), (1470, 19468), (1519, 18840), (1570, 18228), (1736, 16485), (1860, 15386), (1884, 15190), (1960, 14601), (2170, 13188), (2198, 13020), (2355, 12152), (2604, 10990), (2940, 9734), (3038, 9420), (3140, 9114), (3255, 8792), (3297, 8680), (3720, 7693), (3768, 7595), (4340, 6594), (4396, 6510), (4557, 6280), (4710, 6076), (4867, 5880), (5208, 5495)]