39937940

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{83}}^1\times {\mathrm{491}}^1$

素因数の和:597

約数の個数: 72

約数和(自身を含む): 98939232

約数和(自身を除く): 59001292

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 83, 98, 140, 166, 196, 245, 332, 415, 490, 491, 581, 830, 980, 982, 1162, 1660, 1964, 2324, 2455, 2905, 3437, 4067, 4910, 5810, 6874, 8134, 9820, 11620, 13748, 16268, 17185, 20335, 24059, 34370, 40670, 40753, 48118, 68740, 81340, 81506, 96236, 120295, 163012, 203765, 240590, 285271, 407530, 481180, 570542, 815060, 1141084, 1426355, 1996897, 2852710, 3993794, 5705420, 7987588, 9984485, 19968970, 39937940]

約数ペア:

[(1, 39937940), (2, 19968970), (4, 9984485), (5, 7987588), (7, 5705420), (10, 3993794), (14, 2852710), (20, 1996897), (28, 1426355), (35, 1141084), (49, 815060), (70, 570542), (83, 481180), (98, 407530), (140, 285271), (166, 240590), (196, 203765), (245, 163012), (332, 120295), (415, 96236), (490, 81506), (491, 81340), (581, 68740), (830, 48118), (980, 40753), (982, 40670), (1162, 34370), (1660, 24059), (1964, 20335), (2324, 17185), (2455, 16268), (2905, 13748), (3437, 11620), (4067, 9820), (4910, 8134), (5810, 6874)]