64744020

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{1721}}^1$

素因数の和:1766

約数の個数: 144

約数和(自身を含む): 225650880

約数和(自身を除く): 160906860

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 15, 18, 19, 20, 22, 30, 33, 36, 38, 44, 45, 55, 57, 60, 66, 76, 90, 95, 99, 110, 114, 132, 165, 171, 180, 190, 198, 209, 220, 228, 285, 330, 342, 380, 396, 418, 495, 570, 627, 660, 684, 836, 855, 990, 1045, 1140, 1254, 1710, 1721, 1881, 1980, 2090, 2508, 3135, 3420, 3442, 3762, 4180, 5163, 6270, 6884, 7524, 8605, 9405, 10326, 12540, 15489, 17210, 18810, 18931, 20652, 25815, 30978, 32699, 34420, 37620, 37862, 51630, 56793, 61956, 65398, 75724, 77445, 94655, 98097, 103260, 113586, 130796, 154890, 163495, 170379, 189310, 196194, 227172, 283965, 294291, 309780, 326990, 340758, 359689, 378620, 392388, 490485, 567930, 588582, 653980, 681516, 719378, 851895, 980970, 1079067, 1135860, 1177164, 1438756, 1471455, 1703790, 1798445, 1961940, 2158134, 2942910, 3237201, 3407580, 3596890, 4316268, 5395335, 5885820, 6474402, 7193780, 10790670, 12948804, 16186005, 21581340, 32372010, 64744020]

約数ペア:

[(1, 64744020), (2, 32372010), (3, 21581340), (4, 16186005), (5, 12948804), (6, 10790670), (9, 7193780), (10, 6474402), (11, 5885820), (12, 5395335), (15, 4316268), (18, 3596890), (19, 3407580), (20, 3237201), (22, 2942910), (30, 2158134), (33, 1961940), (36, 1798445), (38, 1703790), (44, 1471455), (45, 1438756), (55, 1177164), (57, 1135860), (60, 1079067), (66, 980970), (76, 851895), (90, 719378), (95, 681516), (99, 653980), (110, 588582), (114, 567930), (132, 490485), (165, 392388), (171, 378620), (180, 359689), (190, 340758), (198, 326990), (209, 309780), (220, 294291), (228, 283965), (285, 227172), (330, 196194), (342, 189310), (380, 170379), (396, 163495), (418, 154890), (495, 130796), (570, 113586), (627, 103260), (660, 98097), (684, 94655), (836, 77445), (855, 75724), (990, 65398), (1045, 61956), (1140, 56793), (1254, 51630), (1710, 37862), (1721, 37620), (1881, 34420), (1980, 32699), (2090, 30978), (2508, 25815), (3135, 20652), (3420, 18931), (3442, 18810), (3762, 17210), (4180, 15489), (5163, 12540), (6270, 10326), (6884, 9405), (7524, 8605)]