20129880

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{271}}^1\times {\mathrm{619}}^1$

素因数の和:904

約数の個数: 64

約数和(自身を含む): 60710400

約数和(自身を除く): 40580520

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 271, 542, 619, 813, 1084, 1238, 1355, 1626, 1857, 2168, 2476, 2710, 3095, 3252, 3714, 4065, 4952, 5420, 6190, 6504, 7428, 8130, 9285, 10840, 12380, 14856, 16260, 18570, 24760, 32520, 37140, 74280, 167749, 335498, 503247, 670996, 838745, 1006494, 1341992, 1677490, 2012988, 2516235, 3354980, 4025976, 5032470, 6709960, 10064940, 20129880]

約数ペア:

[(1, 20129880), (2, 10064940), (3, 6709960), (4, 5032470), (5, 4025976), (6, 3354980), (8, 2516235), (10, 2012988), (12, 1677490), (15, 1341992), (20, 1006494), (24, 838745), (30, 670996), (40, 503247), (60, 335498), (120, 167749), (271, 74280), (542, 37140), (619, 32520), (813, 24760), (1084, 18570), (1238, 16260), (1355, 14856), (1626, 12380), (1857, 10840), (2168, 9285), (2476, 8130), (2710, 7428), (3095, 6504), (3252, 6190), (3714, 5420), (4065, 4952)]