61222520

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{97}}^1\times {\mathrm{509}}^1$

素因数の和:648

約数の個数: 64

約数和(自身を含む): 143942400

約数和(自身を除く): 82719880

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 97, 124, 155, 194, 248, 310, 388, 485, 509, 620, 776, 970, 1018, 1240, 1940, 2036, 2545, 3007, 3880, 4072, 5090, 6014, 10180, 12028, 15035, 15779, 20360, 24056, 30070, 31558, 49373, 60140, 63116, 78895, 98746, 120280, 126232, 157790, 197492, 246865, 315580, 394984, 493730, 631160, 987460, 1530563, 1974920, 3061126, 6122252, 7652815, 12244504, 15305630, 30611260, 61222520]

約数ペア:

[(1, 61222520), (2, 30611260), (4, 15305630), (5, 12244504), (8, 7652815), (10, 6122252), (20, 3061126), (31, 1974920), (40, 1530563), (62, 987460), (97, 631160), (124, 493730), (155, 394984), (194, 315580), (248, 246865), (310, 197492), (388, 157790), (485, 126232), (509, 120280), (620, 98746), (776, 78895), (970, 63116), (1018, 60140), (1240, 49373), (1940, 31558), (2036, 30070), (2545, 24056), (3007, 20360), (3880, 15779), (4072, 15035), (5090, 12028), (6014, 10180)]