81771540

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{47}}^1\times {\mathrm{107}}^1\times {\mathrm{271}}^1$

素因数の和:437

約数の個数: 96

約数和(自身を含む): 236888064

約数和(自身を除く): 155116524

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 47, 60, 94, 107, 141, 188, 214, 235, 271, 282, 321, 428, 470, 535, 542, 564, 642, 705, 813, 940, 1070, 1084, 1284, 1355, 1410, 1605, 1626, 2140, 2710, 2820, 3210, 3252, 4065, 5029, 5420, 6420, 8130, 10058, 12737, 15087, 16260, 20116, 25145, 25474, 28997, 30174, 38211, 50290, 50948, 57994, 60348, 63685, 75435, 76422, 86991, 100580, 115988, 127370, 144985, 150870, 152844, 173982, 191055, 254740, 289970, 301740, 347964, 382110, 434955, 579940, 764220, 869910, 1362859, 1739820, 2725718, 4088577, 5451436, 6814295, 8177154, 13628590, 16354308, 20442885, 27257180, 40885770, 81771540]

約数ペア:

[(1, 81771540), (2, 40885770), (3, 27257180), (4, 20442885), (5, 16354308), (6, 13628590), (10, 8177154), (12, 6814295), (15, 5451436), (20, 4088577), (30, 2725718), (47, 1739820), (60, 1362859), (94, 869910), (107, 764220), (141, 579940), (188, 434955), (214, 382110), (235, 347964), (271, 301740), (282, 289970), (321, 254740), (428, 191055), (470, 173982), (535, 152844), (542, 150870), (564, 144985), (642, 127370), (705, 115988), (813, 100580), (940, 86991), (1070, 76422), (1084, 75435), (1284, 63685), (1355, 60348), (1410, 57994), (1605, 50948), (1626, 50290), (2140, 38211), (2710, 30174), (2820, 28997), (3210, 25474), (3252, 25145), (4065, 20116), (5029, 16260), (5420, 15087), (6420, 12737), (8130, 10058)]