2520440

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{131}}^1$

素因数の和:192

約数の個数: 64

約数和(自身を含む): 6320160

約数和(自身を除く): 3799720

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 37, 40, 52, 65, 74, 104, 130, 131, 148, 185, 260, 262, 296, 370, 481, 520, 524, 655, 740, 962, 1048, 1310, 1480, 1703, 1924, 2405, 2620, 3406, 3848, 4810, 4847, 5240, 6812, 8515, 9620, 9694, 13624, 17030, 19240, 19388, 24235, 34060, 38776, 48470, 63011, 68120, 96940, 126022, 193880, 252044, 315055, 504088, 630110, 1260220, 2520440]

約数ペア:

[(1, 2520440), (2, 1260220), (4, 630110), (5, 504088), (8, 315055), (10, 252044), (13, 193880), (20, 126022), (26, 96940), (37, 68120), (40, 63011), (52, 48470), (65, 38776), (74, 34060), (104, 24235), (130, 19388), (131, 19240), (148, 17030), (185, 13624), (260, 9694), (262, 9620), (296, 8515), (370, 6812), (481, 5240), (520, 4847), (524, 4810), (655, 3848), (740, 3406), (962, 2620), (1048, 2405), (1310, 1924), (1480, 1703)]