390028900

素因数分解:

$2^2\times 5^2\times {\mathrm{41}}^1\times {\mathrm{251}}^1\times {\mathrm{379}}^1$

素因数の和:685

約数の個数: 72

約数和(自身を含む): 872756640

約数和(自身を除く): 482727740

約数列:

[1, 2, 4, 5, 10, 20, 25, 41, 50, 82, 100, 164, 205, 251, 379, 410, 502, 758, 820, 1004, 1025, 1255, 1516, 1895, 2050, 2510, 3790, 4100, 5020, 6275, 7580, 9475, 10291, 12550, 15539, 18950, 20582, 25100, 31078, 37900, 41164, 51455, 62156, 77695, 95129, 102910, 155390, 190258, 205820, 257275, 310780, 380516, 388475, 475645, 514550, 776950, 951290, 1029100, 1553900, 1902580, 2378225, 3900289, 4756450, 7800578, 9512900, 15601156, 19501445, 39002890, 78005780, 97507225, 195014450, 390028900]

約数ペア:

[(1, 390028900), (2, 195014450), (4, 97507225), (5, 78005780), (10, 39002890), (20, 19501445), (25, 15601156), (41, 9512900), (50, 7800578), (82, 4756450), (100, 3900289), (164, 2378225), (205, 1902580), (251, 1553900), (379, 1029100), (410, 951290), (502, 776950), (758, 514550), (820, 475645), (1004, 388475), (1025, 380516), (1255, 310780), (1516, 257275), (1895, 205820), (2050, 190258), (2510, 155390), (3790, 102910), (4100, 95129), (5020, 77695), (6275, 62156), (7580, 51455), (9475, 41164), (10291, 37900), (12550, 31078), (15539, 25100), (18950, 20582)]