201815325

素因数分解:

$3^2\times 5^2\times {\mathrm{41}}^1\times {\mathrm{131}}^1\times {\mathrm{167}}^1$

素因数の和:355

約数の個数: 72

約数和(自身を含む): 375350976

約数和(自身を除く): 173535651

約数列:

[1, 3, 5, 9, 15, 25, 41, 45, 75, 123, 131, 167, 205, 225, 369, 393, 501, 615, 655, 835, 1025, 1179, 1503, 1845, 1965, 2505, 3075, 3275, 4175, 5371, 5895, 6847, 7515, 9225, 9825, 12525, 16113, 20541, 21877, 26855, 29475, 34235, 37575, 48339, 61623, 65631, 80565, 102705, 109385, 134275, 171175, 196893, 241695, 308115, 328155, 402825, 513525, 546925, 896957, 984465, 1208475, 1540575, 1640775, 2690871, 4484785, 4922325, 8072613, 13454355, 22423925, 40363065, 67271775, 201815325]

約数ペア:

[(1, 201815325), (3, 67271775), (5, 40363065), (9, 22423925), (15, 13454355), (25, 8072613), (41, 4922325), (45, 4484785), (75, 2690871), (123, 1640775), (131, 1540575), (167, 1208475), (205, 984465), (225, 896957), (369, 546925), (393, 513525), (501, 402825), (615, 328155), (655, 308115), (835, 241695), (1025, 196893), (1179, 171175), (1503, 134275), (1845, 109385), (1965, 102705), (2505, 80565), (3075, 65631), (3275, 61623), (4175, 48339), (5371, 37575), (5895, 34235), (6847, 29475), (7515, 26855), (9225, 21877), (9825, 20541), (12525, 16113)]