19880050

素因数分解:

$2^1\times 5^2\times {\mathrm{23}}^1\times {\mathrm{59}}^1\times {\mathrm{293}}^1$

素因数の和:387

約数の個数: 48

約数和(自身を含む): 39372480

約数和(自身を除く): 19492430

約数列:

[1, 2, 5, 10, 23, 25, 46, 50, 59, 115, 118, 230, 293, 295, 575, 586, 590, 1150, 1357, 1465, 1475, 2714, 2930, 2950, 6739, 6785, 7325, 13478, 13570, 14650, 17287, 33695, 33925, 34574, 67390, 67850, 86435, 168475, 172870, 336950, 397601, 432175, 795202, 864350, 1988005, 3976010, 9940025, 19880050]

約数ペア:

[(1, 19880050), (2, 9940025), (5, 3976010), (10, 1988005), (23, 864350), (25, 795202), (46, 432175), (50, 397601), (59, 336950), (115, 172870), (118, 168475), (230, 86435), (293, 67850), (295, 67390), (575, 34574), (586, 33925), (590, 33695), (1150, 17287), (1357, 14650), (1465, 13570), (1475, 13478), (2714, 7325), (2930, 6785), (2950, 6739)]