617327140

素因数分解:

$2^2\times 5^1\times {\mathrm{47}}^2\times {\mathrm{89}}^1\times {\mathrm{157}}^1$

素因数の和:349

約数の個数: 72

約数和(自身を含む): 1347970680

約数和(自身を除く): 730643540

約数列:

[1, 2, 4, 5, 10, 20, 47, 89, 94, 157, 178, 188, 235, 314, 356, 445, 470, 628, 785, 890, 940, 1570, 1780, 2209, 3140, 4183, 4418, 7379, 8366, 8836, 11045, 13973, 14758, 16732, 20915, 22090, 27946, 29516, 36895, 41830, 44180, 55892, 69865, 73790, 83660, 139730, 147580, 196601, 279460, 346813, 393202, 656731, 693626, 786404, 983005, 1313462, 1387252, 1734065, 1966010, 2626924, 3283655, 3468130, 3932020, 6567310, 6936260, 13134620, 30866357, 61732714, 123465428, 154331785, 308663570, 617327140]

約数ペア:

[(1, 617327140), (2, 308663570), (4, 154331785), (5, 123465428), (10, 61732714), (20, 30866357), (47, 13134620), (89, 6936260), (94, 6567310), (157, 3932020), (178, 3468130), (188, 3283655), (235, 2626924), (314, 1966010), (356, 1734065), (445, 1387252), (470, 1313462), (628, 983005), (785, 786404), (890, 693626), (940, 656731), (1570, 393202), (1780, 346813), (2209, 279460), (3140, 196601), (4183, 147580), (4418, 139730), (7379, 83660), (8366, 73790), (8836, 69865), (11045, 55892), (13973, 44180), (14758, 41830), (16732, 36895), (20915, 29516), (22090, 27946)]