28648360

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{1489}}^1$

素因数の和:1550

約数の個数: 64

約数和(自身を含む): 71341200

約数和(自身を除く): 42692840

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 37, 40, 52, 65, 74, 104, 130, 148, 185, 260, 296, 370, 481, 520, 740, 962, 1480, 1489, 1924, 2405, 2978, 3848, 4810, 5956, 7445, 9620, 11912, 14890, 19240, 19357, 29780, 38714, 55093, 59560, 77428, 96785, 110186, 154856, 193570, 220372, 275465, 387140, 440744, 550930, 716209, 774280, 1101860, 1432418, 2203720, 2864836, 3581045, 5729672, 7162090, 14324180, 28648360]

約数ペア:

[(1, 28648360), (2, 14324180), (4, 7162090), (5, 5729672), (8, 3581045), (10, 2864836), (13, 2203720), (20, 1432418), (26, 1101860), (37, 774280), (40, 716209), (52, 550930), (65, 440744), (74, 387140), (104, 275465), (130, 220372), (148, 193570), (185, 154856), (260, 110186), (296, 96785), (370, 77428), (481, 59560), (520, 55093), (740, 38714), (962, 29780), (1480, 19357), (1489, 19240), (1924, 14890), (2405, 11912), (2978, 9620), (3848, 7445), (4810, 5956)]