18689350

素因数分解:

$2^1\times 5^2\times {\mathrm{19}}^1\times {\mathrm{103}}^1\times {\mathrm{191}}^1$

素因数の和:325

約数の個数: 48

約数和(自身を含む): 37140480

約数和(自身を除く): 18451130

約数列:

[1, 2, 5, 10, 19, 25, 38, 50, 95, 103, 190, 191, 206, 382, 475, 515, 950, 955, 1030, 1910, 1957, 2575, 3629, 3914, 4775, 5150, 7258, 9550, 9785, 18145, 19570, 19673, 36290, 39346, 48925, 90725, 97850, 98365, 181450, 196730, 373787, 491825, 747574, 983650, 1868935, 3737870, 9344675, 18689350]

約数ペア:

[(1, 18689350), (2, 9344675), (5, 3737870), (10, 1868935), (19, 983650), (25, 747574), (38, 491825), (50, 373787), (95, 196730), (103, 181450), (190, 98365), (191, 97850), (206, 90725), (382, 48925), (475, 39346), (515, 36290), (950, 19673), (955, 19570), (1030, 18145), (1910, 9785), (1957, 9550), (2575, 7258), (3629, 5150), (3914, 4775)]