81398800

素因数分解:

$2^4\times 5^2\times 7^2\times {\mathrm{4153}}^1$

素因数の和:4185

約数の個数: 90

約数和(自身を含む): 227543658

約数和(自身を除く): 146144858

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 25, 28, 35, 40, 49, 50, 56, 70, 80, 98, 100, 112, 140, 175, 196, 200, 245, 280, 350, 392, 400, 490, 560, 700, 784, 980, 1225, 1400, 1960, 2450, 2800, 3920, 4153, 4900, 8306, 9800, 16612, 19600, 20765, 29071, 33224, 41530, 58142, 66448, 83060, 103825, 116284, 145355, 166120, 203497, 207650, 232568, 290710, 332240, 406994, 415300, 465136, 581420, 726775, 813988, 830600, 1017485, 1162840, 1453550, 1627976, 1661200, 2034970, 2325680, 2907100, 3255952, 4069940, 5087425, 5814200, 8139880, 10174850, 11628400, 16279760, 20349700, 40699400, 81398800]

約数ペア:

[(1, 81398800), (2, 40699400), (4, 20349700), (5, 16279760), (7, 11628400), (8, 10174850), (10, 8139880), (14, 5814200), (16, 5087425), (20, 4069940), (25, 3255952), (28, 2907100), (35, 2325680), (40, 2034970), (49, 1661200), (50, 1627976), (56, 1453550), (70, 1162840), (80, 1017485), (98, 830600), (100, 813988), (112, 726775), (140, 581420), (175, 465136), (196, 415300), (200, 406994), (245, 332240), (280, 290710), (350, 232568), (392, 207650), (400, 203497), (490, 166120), (560, 145355), (700, 116284), (784, 103825), (980, 83060), (1225, 66448), (1400, 58142), (1960, 41530), (2450, 33224), (2800, 29071), (3920, 20765), (4153, 19600), (4900, 16612), (8306, 9800)]