25156400

素因数分解:

$2^4\times 5^2\times {\mathrm{61}}^1\times {\mathrm{1031}}^1$

素因数の和:1110

約数の個数: 60

約数和(自身を含む): 61488624

約数和(自身を除く): 36332224

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 61, 80, 100, 122, 200, 244, 305, 400, 488, 610, 976, 1031, 1220, 1525, 2062, 2440, 3050, 4124, 4880, 5155, 6100, 8248, 10310, 12200, 16496, 20620, 24400, 25775, 41240, 51550, 62891, 82480, 103100, 125782, 206200, 251564, 314455, 412400, 503128, 628910, 1006256, 1257820, 1572275, 2515640, 3144550, 5031280, 6289100, 12578200, 25156400]

約数ペア:

[(1, 25156400), (2, 12578200), (4, 6289100), (5, 5031280), (8, 3144550), (10, 2515640), (16, 1572275), (20, 1257820), (25, 1006256), (40, 628910), (50, 503128), (61, 412400), (80, 314455), (100, 251564), (122, 206200), (200, 125782), (244, 103100), (305, 82480), (400, 62891), (488, 51550), (610, 41240), (976, 25775), (1031, 24400), (1220, 20620), (1525, 16496), (2062, 12200), (2440, 10310), (3050, 8248), (4124, 6100), (4880, 5155)]