640722880

素因数分解:

$2^6\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{9227}}^1$

素因数の和:9282

約数の個数: 112

約数和(自身を含む): 1800124416

約数和(自身を除く): 1159401536

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, 140, 155, 160, 217, 224, 248, 280, 310, 320, 434, 448, 496, 560, 620, 868, 992, 1085, 1120, 1240, 1736, 1984, 2170, 2240, 2480, 3472, 4340, 4960, 6944, 8680, 9227, 9920, 13888, 17360, 18454, 34720, 36908, 46135, 64589, 69440, 73816, 92270, 129178, 147632, 184540, 258356, 286037, 295264, 322945, 369080, 516712, 572074, 590528, 645890, 738160, 1033424, 1144148, 1291780, 1430185, 1476320, 2002259, 2066848, 2288296, 2583560, 2860370, 2952640, 4004518, 4133696, 4576592, 5167120, 5720740, 8009036, 9153184, 10011295, 10334240, 11441480, 16018072, 18306368, 20022590, 20668480, 22882960, 32036144, 40045180, 45765920, 64072288, 80090360, 91531840, 128144576, 160180720, 320361440, 640722880]

約数ペア:

[(1, 640722880), (2, 320361440), (4, 160180720), (5, 128144576), (7, 91531840), (8, 80090360), (10, 64072288), (14, 45765920), (16, 40045180), (20, 32036144), (28, 22882960), (31, 20668480), (32, 20022590), (35, 18306368), (40, 16018072), (56, 11441480), (62, 10334240), (64, 10011295), (70, 9153184), (80, 8009036), (112, 5720740), (124, 5167120), (140, 4576592), (155, 4133696), (160, 4004518), (217, 2952640), (224, 2860370), (248, 2583560), (280, 2288296), (310, 2066848), (320, 2002259), (434, 1476320), (448, 1430185), (496, 1291780), (560, 1144148), (620, 1033424), (868, 738160), (992, 645890), (1085, 590528), (1120, 572074), (1240, 516712), (1736, 369080), (1984, 322945), (2170, 295264), (2240, 286037), (2480, 258356), (3472, 184540), (4340, 147632), (4960, 129178), (6944, 92270), (8680, 73816), (9227, 69440), (9920, 64589), (13888, 46135), (17360, 36908), (18454, 34720)]