25218700

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{1021}}^1$

素因数の和:1067

約数の個数: 72

約数和(自身を含む): 62096720

約数和(自身を除く): 36878020

約数列:

[1, 2, 4, 5, 10, 13, 19, 20, 25, 26, 38, 50, 52, 65, 76, 95, 100, 130, 190, 247, 260, 325, 380, 475, 494, 650, 950, 988, 1021, 1235, 1300, 1900, 2042, 2470, 4084, 4940, 5105, 6175, 10210, 12350, 13273, 19399, 20420, 24700, 25525, 26546, 38798, 51050, 53092, 66365, 77596, 96995, 102100, 132730, 193990, 252187, 265460, 331825, 387980, 484975, 504374, 663650, 969950, 1008748, 1260935, 1327300, 1939900, 2521870, 5043740, 6304675, 12609350, 25218700]

約数ペア:

[(1, 25218700), (2, 12609350), (4, 6304675), (5, 5043740), (10, 2521870), (13, 1939900), (19, 1327300), (20, 1260935), (25, 1008748), (26, 969950), (38, 663650), (50, 504374), (52, 484975), (65, 387980), (76, 331825), (95, 265460), (100, 252187), (130, 193990), (190, 132730), (247, 102100), (260, 96995), (325, 77596), (380, 66365), (475, 53092), (494, 51050), (650, 38798), (950, 26546), (988, 25525), (1021, 24700), (1235, 20420), (1300, 19399), (1900, 13273), (2042, 12350), (2470, 10210), (4084, 6175), (4940, 5105)]