268842920

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{181}}^1\times {\mathrm{523}}^1$

素因数の和:786

約数の個数: 64

約数和(自身を含む): 617984640

約数和(自身を除く): 349141720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 142, 181, 284, 355, 362, 523, 568, 710, 724, 905, 1046, 1420, 1448, 1810, 2092, 2615, 2840, 3620, 4184, 5230, 7240, 10460, 12851, 20920, 25702, 37133, 51404, 64255, 74266, 94663, 102808, 128510, 148532, 185665, 189326, 257020, 297064, 371330, 378652, 473315, 514040, 742660, 757304, 946630, 1485320, 1893260, 3786520, 6721073, 13442146, 26884292, 33605365, 53768584, 67210730, 134421460, 268842920]

約数ペア:

[(1, 268842920), (2, 134421460), (4, 67210730), (5, 53768584), (8, 33605365), (10, 26884292), (20, 13442146), (40, 6721073), (71, 3786520), (142, 1893260), (181, 1485320), (284, 946630), (355, 757304), (362, 742660), (523, 514040), (568, 473315), (710, 378652), (724, 371330), (905, 297064), (1046, 257020), (1420, 189326), (1448, 185665), (1810, 148532), (2092, 128510), (2615, 102808), (2840, 94663), (3620, 74266), (4184, 64255), (5230, 51404), (7240, 37133), (10460, 25702), (12851, 20920)]