13396280

素因数分解:

$2^3\times 5^1\times {\mathrm{53}}^1\times {\mathrm{71}}^1\times {\mathrm{89}}^1$

素因数の和:224

約数の個数: 64

約数和(自身を含む): 31492800

約数和(自身を除く): 18096520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 53, 71, 89, 106, 142, 178, 212, 265, 284, 355, 356, 424, 445, 530, 568, 710, 712, 890, 1060, 1420, 1780, 2120, 2840, 3560, 3763, 4717, 6319, 7526, 9434, 12638, 15052, 18815, 18868, 23585, 25276, 30104, 31595, 37630, 37736, 47170, 50552, 63190, 75260, 94340, 126380, 150520, 188680, 252760, 334907, 669814, 1339628, 1674535, 2679256, 3349070, 6698140, 13396280]

約数ペア:

[(1, 13396280), (2, 6698140), (4, 3349070), (5, 2679256), (8, 1674535), (10, 1339628), (20, 669814), (40, 334907), (53, 252760), (71, 188680), (89, 150520), (106, 126380), (142, 94340), (178, 75260), (212, 63190), (265, 50552), (284, 47170), (355, 37736), (356, 37630), (424, 31595), (445, 30104), (530, 25276), (568, 23585), (710, 18868), (712, 18815), (890, 15052), (1060, 12638), (1420, 9434), (1780, 7526), (2120, 6319), (2840, 4717), (3560, 3763)]