19701550

素因数分解:

$2^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{113}}^1\times {\mathrm{317}}^1$

素因数の和:453

約数の個数: 48

約数和(自身を含む): 40457232

約数和(自身を除く): 20755682

約数列:

[1, 2, 5, 10, 11, 22, 25, 50, 55, 110, 113, 226, 275, 317, 550, 565, 634, 1130, 1243, 1585, 2486, 2825, 3170, 3487, 5650, 6215, 6974, 7925, 12430, 15850, 17435, 31075, 34870, 35821, 62150, 71642, 87175, 174350, 179105, 358210, 394031, 788062, 895525, 1791050, 1970155, 3940310, 9850775, 19701550]

約数ペア:

[(1, 19701550), (2, 9850775), (5, 3940310), (10, 1970155), (11, 1791050), (22, 895525), (25, 788062), (50, 394031), (55, 358210), (110, 179105), (113, 174350), (226, 87175), (275, 71642), (317, 62150), (550, 35821), (565, 34870), (634, 31075), (1130, 17435), (1243, 15850), (1585, 12430), (2486, 7925), (2825, 6974), (3170, 6215), (3487, 5650)]