17280020

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{593}}^1$

素因数の和:680

約数の個数: 48

約数和(自身を含む): 38320128

約数和(自身を除く): 21040108

約数列:

[1, 2, 4, 5, 10, 20, 31, 47, 62, 94, 124, 155, 188, 235, 310, 470, 593, 620, 940, 1186, 1457, 2372, 2914, 2965, 5828, 5930, 7285, 11860, 14570, 18383, 27871, 29140, 36766, 55742, 73532, 91915, 111484, 139355, 183830, 278710, 367660, 557420, 864001, 1728002, 3456004, 4320005, 8640010, 17280020]

約数ペア:

[(1, 17280020), (2, 8640010), (4, 4320005), (5, 3456004), (10, 1728002), (20, 864001), (31, 557420), (47, 367660), (62, 278710), (94, 183830), (124, 139355), (155, 111484), (188, 91915), (235, 73532), (310, 55742), (470, 36766), (593, 29140), (620, 27871), (940, 18383), (1186, 14570), (1457, 11860), (2372, 7285), (2914, 5930), (2965, 5828)]