491807680

素因数分解:

$2^6\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{16889}}^1$

素因数の和:16926

約数の個数: 112

約数和(自身を含む): 1441460160

約数和(自身を除く): 949652480

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 26, 28, 32, 35, 40, 52, 56, 64, 65, 70, 80, 91, 104, 112, 130, 140, 160, 182, 208, 224, 260, 280, 320, 364, 416, 448, 455, 520, 560, 728, 832, 910, 1040, 1120, 1456, 1820, 2080, 2240, 2912, 3640, 4160, 5824, 7280, 14560, 16889, 29120, 33778, 67556, 84445, 118223, 135112, 168890, 219557, 236446, 270224, 337780, 439114, 472892, 540448, 591115, 675560, 878228, 945784, 1080896, 1097785, 1182230, 1351120, 1536899, 1756456, 1891568, 2195570, 2364460, 2702240, 3073798, 3512912, 3783136, 4391140, 4728920, 5404480, 6147596, 7025824, 7566272, 7684495, 8782280, 9457840, 12295192, 14051648, 15368990, 17564560, 18915680, 24590384, 30737980, 35129120, 37831360, 49180768, 61475960, 70258240, 98361536, 122951920, 245903840, 491807680]

約数ペア:

[(1, 491807680), (2, 245903840), (4, 122951920), (5, 98361536), (7, 70258240), (8, 61475960), (10, 49180768), (13, 37831360), (14, 35129120), (16, 30737980), (20, 24590384), (26, 18915680), (28, 17564560), (32, 15368990), (35, 14051648), (40, 12295192), (52, 9457840), (56, 8782280), (64, 7684495), (65, 7566272), (70, 7025824), (80, 6147596), (91, 5404480), (104, 4728920), (112, 4391140), (130, 3783136), (140, 3512912), (160, 3073798), (182, 2702240), (208, 2364460), (224, 2195570), (260, 1891568), (280, 1756456), (320, 1536899), (364, 1351120), (416, 1182230), (448, 1097785), (455, 1080896), (520, 945784), (560, 878228), (728, 675560), (832, 591115), (910, 540448), (1040, 472892), (1120, 439114), (1456, 337780), (1820, 270224), (2080, 236446), (2240, 219557), (2912, 168890), (3640, 135112), (4160, 118223), (5824, 84445), (7280, 67556), (14560, 33778), (16889, 29120)]