680366920

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{373}}^1\times {\mathrm{1471}}^1$

素因数の和:1886

約数の個数: 64

約数和(自身を含む): 1585520640

約数和(自身を除く): 905153720

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 373, 620, 746, 1240, 1471, 1492, 1865, 2942, 2984, 3730, 5884, 7355, 7460, 11563, 11768, 14710, 14920, 23126, 29420, 45601, 46252, 57815, 58840, 91202, 92504, 115630, 182404, 228005, 231260, 364808, 456010, 462520, 548683, 912020, 1097366, 1824040, 2194732, 2743415, 4389464, 5486830, 10973660, 17009173, 21947320, 34018346, 68036692, 85045865, 136073384, 170091730, 340183460, 680366920]

約数ペア:

[(1, 680366920), (2, 340183460), (4, 170091730), (5, 136073384), (8, 85045865), (10, 68036692), (20, 34018346), (31, 21947320), (40, 17009173), (62, 10973660), (124, 5486830), (155, 4389464), (248, 2743415), (310, 2194732), (373, 1824040), (620, 1097366), (746, 912020), (1240, 548683), (1471, 462520), (1492, 456010), (1865, 364808), (2942, 231260), (2984, 228005), (3730, 182404), (5884, 115630), (7355, 92504), (7460, 91202), (11563, 58840), (11768, 57815), (14710, 46252), (14920, 45601), (23126, 29420)]