40518400

素因数分解:

$2^8\times 5^2\times {\mathrm{13}}^1\times {\mathrm{487}}^1$

素因数の和:526

約数の個数: 108

約数和(自身を含む): 108225712

約数和(自身を除く): 67707312

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 25, 26, 32, 40, 50, 52, 64, 65, 80, 100, 104, 128, 130, 160, 200, 208, 256, 260, 320, 325, 400, 416, 487, 520, 640, 650, 800, 832, 974, 1040, 1280, 1300, 1600, 1664, 1948, 2080, 2435, 2600, 3200, 3328, 3896, 4160, 4870, 5200, 6331, 6400, 7792, 8320, 9740, 10400, 12175, 12662, 15584, 16640, 19480, 20800, 24350, 25324, 31168, 31655, 38960, 41600, 48700, 50648, 62336, 63310, 77920, 83200, 97400, 101296, 124672, 126620, 155840, 158275, 194800, 202592, 253240, 311680, 316550, 389600, 405184, 506480, 623360, 633100, 779200, 810368, 1012960, 1266200, 1558400, 1620736, 2025920, 2532400, 3116800, 4051840, 5064800, 8103680, 10129600, 20259200, 40518400]

約数ペア:

[(1, 40518400), (2, 20259200), (4, 10129600), (5, 8103680), (8, 5064800), (10, 4051840), (13, 3116800), (16, 2532400), (20, 2025920), (25, 1620736), (26, 1558400), (32, 1266200), (40, 1012960), (50, 810368), (52, 779200), (64, 633100), (65, 623360), (80, 506480), (100, 405184), (104, 389600), (128, 316550), (130, 311680), (160, 253240), (200, 202592), (208, 194800), (256, 158275), (260, 155840), (320, 126620), (325, 124672), (400, 101296), (416, 97400), (487, 83200), (520, 77920), (640, 63310), (650, 62336), (800, 50648), (832, 48700), (974, 41600), (1040, 38960), (1280, 31655), (1300, 31168), (1600, 25324), (1664, 24350), (1948, 20800), (2080, 19480), (2435, 16640), (2600, 15584), (3200, 12662), (3328, 12175), (3896, 10400), (4160, 9740), (4870, 8320), (5200, 7792), (6331, 6400)]