20376750

素因数分解:

$2^1\times 3^1\times 5^3\times {\mathrm{101}}^1\times {\mathrm{269}}^1$

素因数の和:390

約数の個数: 64

約数和(自身を含む): 51554880

約数和(自身を除く): 31178130

約数列:

[1, 2, 3, 5, 6, 10, 15, 25, 30, 50, 75, 101, 125, 150, 202, 250, 269, 303, 375, 505, 538, 606, 750, 807, 1010, 1345, 1515, 1614, 2525, 2690, 3030, 4035, 5050, 6725, 7575, 8070, 12625, 13450, 15150, 20175, 25250, 27169, 33625, 37875, 40350, 54338, 67250, 75750, 81507, 100875, 135845, 163014, 201750, 271690, 407535, 679225, 815070, 1358450, 2037675, 3396125, 4075350, 6792250, 10188375, 20376750]

約数ペア:

[(1, 20376750), (2, 10188375), (3, 6792250), (5, 4075350), (6, 3396125), (10, 2037675), (15, 1358450), (25, 815070), (30, 679225), (50, 407535), (75, 271690), (101, 201750), (125, 163014), (150, 135845), (202, 100875), (250, 81507), (269, 75750), (303, 67250), (375, 54338), (505, 40350), (538, 37875), (606, 33625), (750, 27169), (807, 25250), (1010, 20175), (1345, 15150), (1515, 13450), (1614, 12625), (2525, 8070), (2690, 7575), (3030, 6725), (4035, 5050)]