81765360

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{139}}^1$

素因数の和:220

約数の個数: 240

約数和(自身を含む): 297897600

約数和(自身を除く): 216132240

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 19, 20, 24, 30, 36, 38, 40, 43, 45, 48, 57, 60, 72, 76, 80, 86, 90, 95, 114, 120, 129, 139, 144, 152, 171, 172, 180, 190, 215, 228, 240, 258, 278, 285, 304, 342, 344, 360, 380, 387, 417, 430, 456, 516, 556, 570, 645, 684, 688, 695, 720, 760, 774, 817, 834, 855, 860, 912, 1032, 1112, 1140, 1251, 1290, 1368, 1390, 1520, 1548, 1634, 1668, 1710, 1720, 1935, 2064, 2085, 2224, 2280, 2451, 2502, 2580, 2641, 2736, 2780, 3096, 3268, 3336, 3420, 3440, 3870, 4085, 4170, 4560, 4902, 5004, 5160, 5282, 5560, 5977, 6192, 6255, 6536, 6672, 6840, 7353, 7740, 7923, 8170, 8340, 9804, 10008, 10320, 10564, 11120, 11954, 12255, 12510, 13072, 13205, 13680, 14706, 15480, 15846, 16340, 16680, 17931, 19608, 20016, 21128, 23769, 23908, 24510, 25020, 26410, 29412, 29885, 30960, 31692, 32680, 33360, 35862, 36765, 39216, 39615, 42256, 47538, 47816, 49020, 50040, 52820, 53793, 58824, 59770, 63384, 65360, 71724, 73530, 79230, 89655, 95076, 95632, 98040, 100080, 105640, 107586, 113563, 117648, 118845, 119540, 126768, 143448, 147060, 158460, 179310, 190152, 196080, 211280, 215172, 227126, 237690, 239080, 268965, 286896, 294120, 316920, 340689, 358620, 380304, 430344, 454252, 475380, 478160, 537930, 567815, 588240, 633840, 681378, 717240, 860688, 908504, 950760, 1022067, 1075860, 1135630, 1362756, 1434480, 1703445, 1817008, 1901520, 2044134, 2151720, 2271260, 2725512, 3406890, 4088268, 4303440, 4542520, 5110335, 5451024, 6813780, 8176536, 9085040, 10220670, 13627560, 16353072, 20441340, 27255120, 40882680, 81765360]

約数ペア:

[(1, 81765360), (2, 40882680), (3, 27255120), (4, 20441340), (5, 16353072), (6, 13627560), (8, 10220670), (9, 9085040), (10, 8176536), (12, 6813780), (15, 5451024), (16, 5110335), (18, 4542520), (19, 4303440), (20, 4088268), (24, 3406890), (30, 2725512), (36, 2271260), (38, 2151720), (40, 2044134), (43, 1901520), (45, 1817008), (48, 1703445), (57, 1434480), (60, 1362756), (72, 1135630), (76, 1075860), (80, 1022067), (86, 950760), (90, 908504), (95, 860688), (114, 717240), (120, 681378), (129, 633840), (139, 588240), (144, 567815), (152, 537930), (171, 478160), (172, 475380), (180, 454252), (190, 430344), (215, 380304), (228, 358620), (240, 340689), (258, 316920), (278, 294120), (285, 286896), (304, 268965), (342, 239080), (344, 237690), (360, 227126), (380, 215172), (387, 211280), (417, 196080), (430, 190152), (456, 179310), (516, 158460), (556, 147060), (570, 143448), (645, 126768), (684, 119540), (688, 118845), (695, 117648), (720, 113563), (760, 107586), (774, 105640), (817, 100080), (834, 98040), (855, 95632), (860, 95076), (912, 89655), (1032, 79230), (1112, 73530), (1140, 71724), (1251, 65360), (1290, 63384), (1368, 59770), (1390, 58824), (1520, 53793), (1548, 52820), (1634, 50040), (1668, 49020), (1710, 47816), (1720, 47538), (1935, 42256), (2064, 39615), (2085, 39216), (2224, 36765), (2280, 35862), (2451, 33360), (2502, 32680), (2580, 31692), (2641, 30960), (2736, 29885), (2780, 29412), (3096, 26410), (3268, 25020), (3336, 24510), (3420, 23908), (3440, 23769), (3870, 21128), (4085, 20016), (4170, 19608), (4560, 17931), (4902, 16680), (5004, 16340), (5160, 15846), (5282, 15480), (5560, 14706), (5977, 13680), (6192, 13205), (6255, 13072), (6536, 12510), (6672, 12255), (6840, 11954), (7353, 11120), (7740, 10564), (7923, 10320), (8170, 10008), (8340, 9804)]