17842720

素因数分解:

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

素因数の和:290

約数の個数: 96

約数和(自身を含む): 48988800

約数和(自身を除く): 31146080

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 70, 80, 89, 112, 140, 160, 178, 179, 224, 280, 356, 358, 445, 560, 623, 712, 716, 890, 895, 1120, 1246, 1253, 1424, 1432, 1780, 1790, 2492, 2506, 2848, 2864, 3115, 3560, 3580, 4984, 5012, 5728, 6230, 6265, 7120, 7160, 9968, 10024, 12460, 12530, 14240, 14320, 15931, 19936, 20048, 24920, 25060, 28640, 31862, 40096, 49840, 50120, 63724, 79655, 99680, 100240, 111517, 127448, 159310, 200480, 223034, 254896, 318620, 446068, 509792, 557585, 637240, 892136, 1115170, 1274480, 1784272, 2230340, 2548960, 3568544, 4460680, 8921360, 17842720]

約数ペア:

[(1, 17842720), (2, 8921360), (4, 4460680), (5, 3568544), (7, 2548960), (8, 2230340), (10, 1784272), (14, 1274480), (16, 1115170), (20, 892136), (28, 637240), (32, 557585), (35, 509792), (40, 446068), (56, 318620), (70, 254896), (80, 223034), (89, 200480), (112, 159310), (140, 127448), (160, 111517), (178, 100240), (179, 99680), (224, 79655), (280, 63724), (356, 50120), (358, 49840), (445, 40096), (560, 31862), (623, 28640), (712, 25060), (716, 24920), (890, 20048), (895, 19936), (1120, 15931), (1246, 14320), (1253, 14240), (1424, 12530), (1432, 12460), (1780, 10024), (1790, 9968), (2492, 7160), (2506, 7120), (2848, 6265), (2864, 6230), (3115, 5728), (3560, 5012), (3580, 4984)]