393633940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{199}}^2$

素因数の和:485

約数の個数: 72

約数和(自身を含む): 962865792

約数和(自身を除く): 569231852

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 71, 140, 142, 199, 284, 355, 398, 497, 710, 796, 994, 995, 1393, 1420, 1988, 1990, 2485, 2786, 3980, 4970, 5572, 6965, 9940, 13930, 14129, 27860, 28258, 39601, 56516, 70645, 79202, 98903, 141290, 158404, 197806, 198005, 277207, 282580, 395612, 396010, 494515, 554414, 792020, 989030, 1108828, 1386035, 1978060, 2772070, 2811671, 5544140, 5623342, 11246684, 14058355, 19681697, 28116710, 39363394, 56233420, 78726788, 98408485, 196816970, 393633940]

約数ペア:

[(1, 393633940), (2, 196816970), (4, 98408485), (5, 78726788), (7, 56233420), (10, 39363394), (14, 28116710), (20, 19681697), (28, 14058355), (35, 11246684), (70, 5623342), (71, 5544140), (140, 2811671), (142, 2772070), (199, 1978060), (284, 1386035), (355, 1108828), (398, 989030), (497, 792020), (710, 554414), (796, 494515), (994, 396010), (995, 395612), (1393, 282580), (1420, 277207), (1988, 198005), (1990, 197806), (2485, 158404), (2786, 141290), (3980, 98903), (4970, 79202), (5572, 70645), (6965, 56516), (9940, 39601), (13930, 28258), (14129, 27860)]