28086500

素因数分解:

$2^2\times 5^3\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{149}}^1$

素因数の和:210

約数の個数: 96

約数和(自身を含む): 68796000

約数和(自身を除く): 40709500

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 29, 50, 52, 58, 65, 100, 116, 125, 130, 145, 149, 250, 260, 290, 298, 325, 377, 500, 580, 596, 650, 725, 745, 754, 1300, 1450, 1490, 1508, 1625, 1885, 1937, 2900, 2980, 3250, 3625, 3725, 3770, 3874, 4321, 6500, 7250, 7450, 7540, 7748, 8642, 9425, 9685, 14500, 14900, 17284, 18625, 18850, 19370, 21605, 37250, 37700, 38740, 43210, 47125, 48425, 56173, 74500, 86420, 94250, 96850, 108025, 112346, 188500, 193700, 216050, 224692, 242125, 280865, 432100, 484250, 540125, 561730, 968500, 1080250, 1123460, 1404325, 2160500, 2808650, 5617300, 7021625, 14043250, 28086500]

約数ペア:

[(1, 28086500), (2, 14043250), (4, 7021625), (5, 5617300), (10, 2808650), (13, 2160500), (20, 1404325), (25, 1123460), (26, 1080250), (29, 968500), (50, 561730), (52, 540125), (58, 484250), (65, 432100), (100, 280865), (116, 242125), (125, 224692), (130, 216050), (145, 193700), (149, 188500), (250, 112346), (260, 108025), (290, 96850), (298, 94250), (325, 86420), (377, 74500), (500, 56173), (580, 48425), (596, 47125), (650, 43210), (725, 38740), (745, 37700), (754, 37250), (1300, 21605), (1450, 19370), (1490, 18850), (1508, 18625), (1625, 17284), (1885, 14900), (1937, 14500), (2900, 9685), (2980, 9425), (3250, 8642), (3625, 7748), (3725, 7540), (3770, 7450), (3874, 7250), (4321, 6500)]