201616220

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{40813}}^1$

素因数の和:40854

約数の個数: 48

約数和(自身を含む): 479972640

約数和(自身を除く): 278356420

約数列:

[1, 2, 4, 5, 10, 13, 19, 20, 26, 38, 52, 65, 76, 95, 130, 190, 247, 260, 380, 494, 988, 1235, 2470, 4940, 40813, 81626, 163252, 204065, 408130, 530569, 775447, 816260, 1061138, 1550894, 2122276, 2652845, 3101788, 3877235, 5305690, 7754470, 10080811, 10611380, 15508940, 20161622, 40323244, 50404055, 100808110, 201616220]

約数ペア:

[(1, 201616220), (2, 100808110), (4, 50404055), (5, 40323244), (10, 20161622), (13, 15508940), (19, 10611380), (20, 10080811), (26, 7754470), (38, 5305690), (52, 3877235), (65, 3101788), (76, 2652845), (95, 2122276), (130, 1550894), (190, 1061138), (247, 816260), (260, 775447), (380, 530569), (494, 408130), (988, 204065), (1235, 163252), (2470, 81626), (4940, 40813)]