74978840

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{1553}}^1$

素因数の和:1652

約数の個数: 64

約数和(自身を含む): 181258560

約数和(自身を除く): 106279720

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 71, 85, 136, 142, 170, 284, 340, 355, 568, 680, 710, 1207, 1420, 1553, 2414, 2840, 3106, 4828, 6035, 6212, 7765, 9656, 12070, 12424, 15530, 24140, 26401, 31060, 48280, 52802, 62120, 105604, 110263, 132005, 211208, 220526, 264010, 441052, 528020, 551315, 882104, 1056040, 1102630, 1874471, 2205260, 3748942, 4410520, 7497884, 9372355, 14995768, 18744710, 37489420, 74978840]

約数ペア:

[(1, 74978840), (2, 37489420), (4, 18744710), (5, 14995768), (8, 9372355), (10, 7497884), (17, 4410520), (20, 3748942), (34, 2205260), (40, 1874471), (68, 1102630), (71, 1056040), (85, 882104), (136, 551315), (142, 528020), (170, 441052), (284, 264010), (340, 220526), (355, 211208), (568, 132005), (680, 110263), (710, 105604), (1207, 62120), (1420, 52802), (1553, 48280), (2414, 31060), (2840, 26401), (3106, 24140), (4828, 15530), (6035, 12424), (6212, 12070), (7765, 9656)]