87830920

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{163}}^1\times {\mathrm{709}}^1$

素因数の和:902

約数の個数: 64

約数和(自身を含む): 209592000

約数和(自身を除く): 121761080

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 163, 190, 326, 380, 652, 709, 760, 815, 1304, 1418, 1630, 2836, 3097, 3260, 3545, 5672, 6194, 6520, 7090, 12388, 13471, 14180, 15485, 24776, 26942, 28360, 30970, 53884, 61940, 67355, 107768, 115567, 123880, 134710, 231134, 269420, 462268, 538840, 577835, 924536, 1155670, 2195773, 2311340, 4391546, 4622680, 8783092, 10978865, 17566184, 21957730, 43915460, 87830920]

約数ペア:

[(1, 87830920), (2, 43915460), (4, 21957730), (5, 17566184), (8, 10978865), (10, 8783092), (19, 4622680), (20, 4391546), (38, 2311340), (40, 2195773), (76, 1155670), (95, 924536), (152, 577835), (163, 538840), (190, 462268), (326, 269420), (380, 231134), (652, 134710), (709, 123880), (760, 115567), (815, 107768), (1304, 67355), (1418, 61940), (1630, 53884), (2836, 30970), (3097, 28360), (3260, 26942), (3545, 24776), (5672, 15485), (6194, 14180), (6520, 13471), (7090, 12388)]