207978850

素因数分解:

$2^1\times 5^2\times {\mathrm{17}}^2\times {\mathrm{37}}^1\times {\mathrm{389}}^1$

素因数の和:472

約数の個数: 72

約数和(自身を含む): 423125820

約数和(自身を除く): 215146970

約数列:

[1, 2, 5, 10, 17, 25, 34, 37, 50, 74, 85, 170, 185, 289, 370, 389, 425, 578, 629, 778, 850, 925, 1258, 1445, 1850, 1945, 2890, 3145, 3890, 6290, 6613, 7225, 9725, 10693, 13226, 14393, 14450, 15725, 19450, 21386, 28786, 31450, 33065, 53465, 66130, 71965, 106930, 112421, 143930, 165325, 224842, 244681, 267325, 330650, 359825, 489362, 534650, 562105, 719650, 1124210, 1223405, 2446810, 2810525, 4159577, 5621050, 6117025, 8319154, 12234050, 20797885, 41595770, 103989425, 207978850]

約数ペア:

[(1, 207978850), (2, 103989425), (5, 41595770), (10, 20797885), (17, 12234050), (25, 8319154), (34, 6117025), (37, 5621050), (50, 4159577), (74, 2810525), (85, 2446810), (170, 1223405), (185, 1124210), (289, 719650), (370, 562105), (389, 534650), (425, 489362), (578, 359825), (629, 330650), (778, 267325), (850, 244681), (925, 224842), (1258, 165325), (1445, 143930), (1850, 112421), (1945, 106930), (2890, 71965), (3145, 66130), (3890, 53465), (6290, 33065), (6613, 31450), (7225, 28786), (9725, 21386), (10693, 19450), (13226, 15725), (14393, 14450)]