2455440

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{787}}^1$

素因数の和:816

約数の個数: 80

約数和(自身を含む): 8207808

約数和(自身を除く): 5752368

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 20, 24, 26, 30, 39, 40, 48, 52, 60, 65, 78, 80, 104, 120, 130, 156, 195, 208, 240, 260, 312, 390, 520, 624, 780, 787, 1040, 1560, 1574, 2361, 3120, 3148, 3935, 4722, 6296, 7870, 9444, 10231, 11805, 12592, 15740, 18888, 20462, 23610, 30693, 31480, 37776, 40924, 47220, 51155, 61386, 62960, 81848, 94440, 102310, 122772, 153465, 163696, 188880, 204620, 245544, 306930, 409240, 491088, 613860, 818480, 1227720, 2455440]

約数ペア:

[(1, 2455440), (2, 1227720), (3, 818480), (4, 613860), (5, 491088), (6, 409240), (8, 306930), (10, 245544), (12, 204620), (13, 188880), (15, 163696), (16, 153465), (20, 122772), (24, 102310), (26, 94440), (30, 81848), (39, 62960), (40, 61386), (48, 51155), (52, 47220), (60, 40924), (65, 37776), (78, 31480), (80, 30693), (104, 23610), (120, 20462), (130, 18888), (156, 15740), (195, 12592), (208, 11805), (240, 10231), (260, 9444), (312, 7870), (390, 6296), (520, 4722), (624, 3935), (780, 3148), (787, 3120), (1040, 2361), (1560, 1574)]