74921720

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{239}}^1\times {\mathrm{461}}^1$

素因数の和:728

約数の個数: 64

約数和(自身を含む): 179625600

約数和(自身を除く): 104703880

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 239, 340, 461, 478, 680, 922, 956, 1195, 1844, 1912, 2305, 2390, 3688, 4063, 4610, 4780, 7837, 8126, 9220, 9560, 15674, 16252, 18440, 20315, 31348, 32504, 39185, 40630, 62696, 78370, 81260, 110179, 156740, 162520, 220358, 313480, 440716, 550895, 881432, 1101790, 1873043, 2203580, 3746086, 4407160, 7492172, 9365215, 14984344, 18730430, 37460860, 74921720]

約数ペア:

[(1, 74921720), (2, 37460860), (4, 18730430), (5, 14984344), (8, 9365215), (10, 7492172), (17, 4407160), (20, 3746086), (34, 2203580), (40, 1873043), (68, 1101790), (85, 881432), (136, 550895), (170, 440716), (239, 313480), (340, 220358), (461, 162520), (478, 156740), (680, 110179), (922, 81260), (956, 78370), (1195, 62696), (1844, 40630), (1912, 39185), (2305, 32504), (2390, 31348), (3688, 20315), (4063, 18440), (4610, 16252), (4780, 15674), (7837, 9560), (8126, 9220)]