28951390

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{37}}^1\times {\mathrm{463}}^1$

素因数の和:533

約数の個数: 48

約数和(自身を含む): 58079808

約数和(自身を除く): 29128418

約数列:

[1, 2, 5, 10, 13, 26, 37, 65, 74, 130, 169, 185, 338, 370, 463, 481, 845, 926, 962, 1690, 2315, 2405, 4630, 4810, 6019, 6253, 12038, 12506, 17131, 30095, 31265, 34262, 60190, 62530, 78247, 85655, 156494, 171310, 222703, 391235, 445406, 782470, 1113515, 2227030, 2895139, 5790278, 14475695, 28951390]

約数ペア:

[(1, 28951390), (2, 14475695), (5, 5790278), (10, 2895139), (13, 2227030), (26, 1113515), (37, 782470), (65, 445406), (74, 391235), (130, 222703), (169, 171310), (185, 156494), (338, 85655), (370, 78247), (463, 62530), (481, 60190), (845, 34262), (926, 31265), (962, 30095), (1690, 17131), (2315, 12506), (2405, 12038), (4630, 6253), (4810, 6019)]