18922920

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{2221}}^1$

素因数の和:2306

約数の個数: 64

約数和(自身を含む): 57594240

約数和(自身を除く): 38671320

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 71, 120, 142, 213, 284, 355, 426, 568, 710, 852, 1065, 1420, 1704, 2130, 2221, 2840, 4260, 4442, 6663, 8520, 8884, 11105, 13326, 17768, 22210, 26652, 33315, 44420, 53304, 66630, 88840, 133260, 157691, 266520, 315382, 473073, 630764, 788455, 946146, 1261528, 1576910, 1892292, 2365365, 3153820, 3784584, 4730730, 6307640, 9461460, 18922920]

約数ペア:

[(1, 18922920), (2, 9461460), (3, 6307640), (4, 4730730), (5, 3784584), (6, 3153820), (8, 2365365), (10, 1892292), (12, 1576910), (15, 1261528), (20, 946146), (24, 788455), (30, 630764), (40, 473073), (60, 315382), (71, 266520), (120, 157691), (142, 133260), (213, 88840), (284, 66630), (355, 53304), (426, 44420), (568, 33315), (710, 26652), (852, 22210), (1065, 17768), (1420, 13326), (1704, 11105), (2130, 8884), (2221, 8520), (2840, 6663), (4260, 4442)]