19403800

素因数分解:

$2^3\times 5^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{439}}^1$

素因数の和:485

約数の個数: 96

約数和(自身を含む): 51559200

約数和(自身を除く): 32155400

約数列:

[1, 2, 4, 5, 8, 10, 13, 17, 20, 25, 26, 34, 40, 50, 52, 65, 68, 85, 100, 104, 130, 136, 170, 200, 221, 260, 325, 340, 425, 439, 442, 520, 650, 680, 850, 878, 884, 1105, 1300, 1700, 1756, 1768, 2195, 2210, 2600, 3400, 3512, 4390, 4420, 5525, 5707, 7463, 8780, 8840, 10975, 11050, 11414, 14926, 17560, 21950, 22100, 22828, 28535, 29852, 37315, 43900, 44200, 45656, 57070, 59704, 74630, 87800, 97019, 114140, 142675, 149260, 186575, 194038, 228280, 285350, 298520, 373150, 388076, 485095, 570700, 746300, 776152, 970190, 1141400, 1492600, 1940380, 2425475, 3880760, 4850950, 9701900, 19403800]

約数ペア:

[(1, 19403800), (2, 9701900), (4, 4850950), (5, 3880760), (8, 2425475), (10, 1940380), (13, 1492600), (17, 1141400), (20, 970190), (25, 776152), (26, 746300), (34, 570700), (40, 485095), (50, 388076), (52, 373150), (65, 298520), (68, 285350), (85, 228280), (100, 194038), (104, 186575), (130, 149260), (136, 142675), (170, 114140), (200, 97019), (221, 87800), (260, 74630), (325, 59704), (340, 57070), (425, 45656), (439, 44200), (442, 43900), (520, 37315), (650, 29852), (680, 28535), (850, 22828), (878, 22100), (884, 21950), (1105, 17560), (1300, 14926), (1700, 11414), (1756, 11050), (1768, 10975), (2195, 8840), (2210, 8780), (2600, 7463), (3400, 5707), (3512, 5525), (4390, 4420)]