8921360

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{89}}^1\times {\mathrm{179}}^1$

素因数の和:288

約数の個数: 80

約数和(自身を含む): 24105600

約数和(自身を除く): 15184240

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 89, 112, 140, 178, 179, 280, 356, 358, 445, 560, 623, 712, 716, 890, 895, 1246, 1253, 1424, 1432, 1780, 1790, 2492, 2506, 2864, 3115, 3560, 3580, 4984, 5012, 6230, 6265, 7120, 7160, 9968, 10024, 12460, 12530, 14320, 15931, 20048, 24920, 25060, 31862, 49840, 50120, 63724, 79655, 100240, 111517, 127448, 159310, 223034, 254896, 318620, 446068, 557585, 637240, 892136, 1115170, 1274480, 1784272, 2230340, 4460680, 8921360]

約数ペア:

[(1, 8921360), (2, 4460680), (4, 2230340), (5, 1784272), (7, 1274480), (8, 1115170), (10, 892136), (14, 637240), (16, 557585), (20, 446068), (28, 318620), (35, 254896), (40, 223034), (56, 159310), (70, 127448), (80, 111517), (89, 100240), (112, 79655), (140, 63724), (178, 50120), (179, 49840), (280, 31862), (356, 25060), (358, 24920), (445, 20048), (560, 15931), (623, 14320), (712, 12530), (716, 12460), (890, 10024), (895, 9968), (1246, 7160), (1253, 7120), (1424, 6265), (1432, 6230), (1780, 5012), (1790, 4984), (2492, 3580), (2506, 3560), (2864, 3115)]