18917600

素因数分解:

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

素因数の和:157

約数の個数: 144

約数和(自身を含む): 53152848

約数和(自身を除く): 34235248

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 17, 20, 25, 26, 32, 34, 40, 50, 52, 65, 68, 80, 85, 100, 104, 107, 130, 136, 160, 170, 200, 208, 214, 221, 260, 272, 325, 340, 400, 416, 425, 428, 442, 520, 535, 544, 650, 680, 800, 850, 856, 884, 1040, 1070, 1105, 1300, 1360, 1391, 1700, 1712, 1768, 1819, 2080, 2140, 2210, 2600, 2675, 2720, 2782, 3400, 3424, 3536, 3638, 4280, 4420, 5200, 5350, 5525, 5564, 6800, 6955, 7072, 7276, 8560, 8840, 9095, 10400, 10700, 11050, 11128, 13600, 13910, 14552, 17120, 17680, 18190, 21400, 22100, 22256, 23647, 27820, 29104, 34775, 35360, 36380, 42800, 44200, 44512, 45475, 47294, 55640, 58208, 69550, 72760, 85600, 88400, 90950, 94588, 111280, 118235, 139100, 145520, 176800, 181900, 189176, 222560, 236470, 278200, 291040, 363800, 378352, 472940, 556400, 591175, 727600, 756704, 945880, 1112800, 1182350, 1455200, 1891760, 2364700, 3783520, 4729400, 9458800, 18917600]

約数ペア:

[(1, 18917600), (2, 9458800), (4, 4729400), (5, 3783520), (8, 2364700), (10, 1891760), (13, 1455200), (16, 1182350), (17, 1112800), (20, 945880), (25, 756704), (26, 727600), (32, 591175), (34, 556400), (40, 472940), (50, 378352), (52, 363800), (65, 291040), (68, 278200), (80, 236470), (85, 222560), (100, 189176), (104, 181900), (107, 176800), (130, 145520), (136, 139100), (160, 118235), (170, 111280), (200, 94588), (208, 90950), (214, 88400), (221, 85600), (260, 72760), (272, 69550), (325, 58208), (340, 55640), (400, 47294), (416, 45475), (425, 44512), (428, 44200), (442, 42800), (520, 36380), (535, 35360), (544, 34775), (650, 29104), (680, 27820), (800, 23647), (850, 22256), (856, 22100), (884, 21400), (1040, 18190), (1070, 17680), (1105, 17120), (1300, 14552), (1360, 13910), (1391, 13600), (1700, 11128), (1712, 11050), (1768, 10700), (1819, 10400), (2080, 9095), (2140, 8840), (2210, 8560), (2600, 7276), (2675, 7072), (2720, 6955), (2782, 6800), (3400, 5564), (3424, 5525), (3536, 5350), (3638, 5200), (4280, 4420)]