89354920

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{73}}^1\times {\mathrm{431}}^1$

素因数の和:586

約数の個数: 64

約数和(自身を含む): 207152640

約数和(自身を除く): 117797720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 73, 142, 146, 284, 292, 355, 365, 431, 568, 584, 710, 730, 862, 1420, 1460, 1724, 2155, 2840, 2920, 3448, 4310, 5183, 8620, 10366, 17240, 20732, 25915, 30601, 31463, 41464, 51830, 61202, 62926, 103660, 122404, 125852, 153005, 157315, 207320, 244808, 251704, 306010, 314630, 612020, 629260, 1224040, 1258520, 2233873, 4467746, 8935492, 11169365, 17870984, 22338730, 44677460, 89354920]

約数ペア:

[(1, 89354920), (2, 44677460), (4, 22338730), (5, 17870984), (8, 11169365), (10, 8935492), (20, 4467746), (40, 2233873), (71, 1258520), (73, 1224040), (142, 629260), (146, 612020), (284, 314630), (292, 306010), (355, 251704), (365, 244808), (431, 207320), (568, 157315), (584, 153005), (710, 125852), (730, 122404), (862, 103660), (1420, 62926), (1460, 61202), (1724, 51830), (2155, 41464), (2840, 31463), (2920, 30601), (3448, 25915), (4310, 20732), (5183, 17240), (8620, 10366)]