40672840

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{107}}^1$

素因数の和:191

約数の個数: 128

約数和(自身を含む): 107775360

約数和(自身を除く): 67102520

約数列:

[1, 2, 4, 5, 8, 10, 13, 17, 20, 26, 34, 40, 43, 52, 65, 68, 85, 86, 104, 107, 130, 136, 170, 172, 214, 215, 221, 260, 340, 344, 428, 430, 442, 520, 535, 559, 680, 731, 856, 860, 884, 1070, 1105, 1118, 1391, 1462, 1720, 1768, 1819, 2140, 2210, 2236, 2782, 2795, 2924, 3638, 3655, 4280, 4420, 4472, 4601, 5564, 5590, 5848, 6955, 7276, 7310, 8840, 9095, 9202, 9503, 11128, 11180, 13910, 14552, 14620, 18190, 18404, 19006, 22360, 23005, 23647, 27820, 29240, 36380, 36808, 38012, 46010, 47294, 47515, 55640, 59813, 72760, 76024, 78217, 92020, 94588, 95030, 118235, 119626, 156434, 184040, 189176, 190060, 236470, 239252, 299065, 312868, 380120, 391085, 472940, 478504, 598130, 625736, 782170, 945880, 1016821, 1196260, 1564340, 2033642, 2392520, 3128680, 4067284, 5084105, 8134568, 10168210, 20336420, 40672840]

約数ペア:

[(1, 40672840), (2, 20336420), (4, 10168210), (5, 8134568), (8, 5084105), (10, 4067284), (13, 3128680), (17, 2392520), (20, 2033642), (26, 1564340), (34, 1196260), (40, 1016821), (43, 945880), (52, 782170), (65, 625736), (68, 598130), (85, 478504), (86, 472940), (104, 391085), (107, 380120), (130, 312868), (136, 299065), (170, 239252), (172, 236470), (214, 190060), (215, 189176), (221, 184040), (260, 156434), (340, 119626), (344, 118235), (428, 95030), (430, 94588), (442, 92020), (520, 78217), (535, 76024), (559, 72760), (680, 59813), (731, 55640), (856, 47515), (860, 47294), (884, 46010), (1070, 38012), (1105, 36808), (1118, 36380), (1391, 29240), (1462, 27820), (1720, 23647), (1768, 23005), (1819, 22360), (2140, 19006), (2210, 18404), (2236, 18190), (2782, 14620), (2795, 14552), (2924, 13910), (3638, 11180), (3655, 11128), (4280, 9503), (4420, 9202), (4472, 9095), (4601, 8840), (5564, 7310), (5590, 7276), (5848, 6955)]