68622920

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{73}}^1\times {\mathrm{331}}^1$

素因数の和:486

約数の個数: 64

約数和(自身を含む): 159200640

約数和(自身を除く): 90577720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 73, 142, 146, 284, 292, 331, 355, 365, 568, 584, 662, 710, 730, 1324, 1420, 1460, 1655, 2648, 2840, 2920, 3310, 5183, 6620, 10366, 13240, 20732, 23501, 24163, 25915, 41464, 47002, 48326, 51830, 94004, 96652, 103660, 117505, 120815, 188008, 193304, 207320, 235010, 241630, 470020, 483260, 940040, 966520, 1715573, 3431146, 6862292, 8577865, 13724584, 17155730, 34311460, 68622920]

約数ペア:

[(1, 68622920), (2, 34311460), (4, 17155730), (5, 13724584), (8, 8577865), (10, 6862292), (20, 3431146), (40, 1715573), (71, 966520), (73, 940040), (142, 483260), (146, 470020), (284, 241630), (292, 235010), (331, 207320), (355, 193304), (365, 188008), (568, 120815), (584, 117505), (662, 103660), (710, 96652), (730, 94004), (1324, 51830), (1420, 48326), (1460, 47002), (1655, 41464), (2648, 25915), (2840, 24163), (2920, 23501), (3310, 20732), (5183, 13240), (6620, 10366)]