87894920

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{73}}^1\times {\mathrm{971}}^1$

素因数の和:1086

約数の個数: 64

約数和(自身を含む): 207152640

約数和(自身を除く): 119257720

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 73, 124, 146, 155, 248, 292, 310, 365, 584, 620, 730, 971, 1240, 1460, 1942, 2263, 2920, 3884, 4526, 4855, 7768, 9052, 9710, 11315, 18104, 19420, 22630, 30101, 38840, 45260, 60202, 70883, 90520, 120404, 141766, 150505, 240808, 283532, 301010, 354415, 567064, 602020, 708830, 1204040, 1417660, 2197373, 2835320, 4394746, 8789492, 10986865, 17578984, 21973730, 43947460, 87894920]

約数ペア:

[(1, 87894920), (2, 43947460), (4, 21973730), (5, 17578984), (8, 10986865), (10, 8789492), (20, 4394746), (31, 2835320), (40, 2197373), (62, 1417660), (73, 1204040), (124, 708830), (146, 602020), (155, 567064), (248, 354415), (292, 301010), (310, 283532), (365, 240808), (584, 150505), (620, 141766), (730, 120404), (971, 90520), (1240, 70883), (1460, 60202), (1942, 45260), (2263, 38840), (2920, 30101), (3884, 22630), (4526, 19420), (4855, 18104), (7768, 11315), (9052, 9710)]