31525760

素因数分解:

$2^7\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{227}}^1$

素因数の和:284

約数の個数: 128

約数和(自身を含む): 89303040

約数和(自身を除く): 57777280

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 31, 32, 35, 40, 56, 62, 64, 70, 80, 112, 124, 128, 140, 155, 160, 217, 224, 227, 248, 280, 310, 320, 434, 448, 454, 496, 560, 620, 640, 868, 896, 908, 992, 1085, 1120, 1135, 1240, 1589, 1736, 1816, 1984, 2170, 2240, 2270, 2480, 3178, 3472, 3632, 3968, 4340, 4480, 4540, 4960, 6356, 6944, 7037, 7264, 7945, 8680, 9080, 9920, 12712, 13888, 14074, 14528, 15890, 17360, 18160, 19840, 25424, 27776, 28148, 29056, 31780, 34720, 35185, 36320, 49259, 50848, 56296, 63560, 69440, 70370, 72640, 98518, 101696, 112592, 127120, 138880, 140740, 145280, 197036, 203392, 225184, 246295, 254240, 281480, 394072, 450368, 492590, 508480, 562960, 788144, 900736, 985180, 1016960, 1125920, 1576288, 1970360, 2251840, 3152576, 3940720, 4503680, 6305152, 7881440, 15762880, 31525760]

約数ペア:

[(1, 31525760), (2, 15762880), (4, 7881440), (5, 6305152), (7, 4503680), (8, 3940720), (10, 3152576), (14, 2251840), (16, 1970360), (20, 1576288), (28, 1125920), (31, 1016960), (32, 985180), (35, 900736), (40, 788144), (56, 562960), (62, 508480), (64, 492590), (70, 450368), (80, 394072), (112, 281480), (124, 254240), (128, 246295), (140, 225184), (155, 203392), (160, 197036), (217, 145280), (224, 140740), (227, 138880), (248, 127120), (280, 112592), (310, 101696), (320, 98518), (434, 72640), (448, 70370), (454, 69440), (496, 63560), (560, 56296), (620, 50848), (640, 49259), (868, 36320), (896, 35185), (908, 34720), (992, 31780), (1085, 29056), (1120, 28148), (1135, 27776), (1240, 25424), (1589, 19840), (1736, 18160), (1816, 17360), (1984, 15890), (2170, 14528), (2240, 14074), (2270, 13888), (2480, 12712), (3178, 9920), (3472, 9080), (3632, 8680), (3968, 7945), (4340, 7264), (4480, 7037), (4540, 6944), (4960, 6356)]