123030920

素因数分解:

$2^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{97}}^1\times {\mathrm{857}}^1$

素因数の和:1002

約数の個数: 64

約数和(自身を含む): 287567280

約数和(自身を除く): 164536360

約数列:

[1, 2, 4, 5, 8, 10, 20, 37, 40, 74, 97, 148, 185, 194, 296, 370, 388, 485, 740, 776, 857, 970, 1480, 1714, 1940, 3428, 3589, 3880, 4285, 6856, 7178, 8570, 14356, 17140, 17945, 28712, 31709, 34280, 35890, 63418, 71780, 83129, 126836, 143560, 158545, 166258, 253672, 317090, 332516, 415645, 634180, 665032, 831290, 1268360, 1662580, 3075773, 3325160, 6151546, 12303092, 15378865, 24606184, 30757730, 61515460, 123030920]

約数ペア:

[(1, 123030920), (2, 61515460), (4, 30757730), (5, 24606184), (8, 15378865), (10, 12303092), (20, 6151546), (37, 3325160), (40, 3075773), (74, 1662580), (97, 1268360), (148, 831290), (185, 665032), (194, 634180), (296, 415645), (370, 332516), (388, 317090), (485, 253672), (740, 166258), (776, 158545), (857, 143560), (970, 126836), (1480, 83129), (1714, 71780), (1940, 63418), (3428, 35890), (3589, 34280), (3880, 31709), (4285, 28712), (6856, 17945), (7178, 17140), (8570, 14356)]