201141020

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{439}}^1\times {\mathrm{739}}^1$

素因数の和:1218

約数の個数: 48

約数和(自身を含む): 437606400

約数和(自身を除く): 236465380

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 439, 620, 739, 878, 1478, 1756, 2195, 2956, 3695, 4390, 7390, 8780, 13609, 14780, 22909, 27218, 45818, 54436, 68045, 91636, 114545, 136090, 229090, 272180, 324421, 458180, 648842, 1297684, 1622105, 3244210, 6488420, 10057051, 20114102, 40228204, 50285255, 100570510, 201141020]

約数ペア:

[(1, 201141020), (2, 100570510), (4, 50285255), (5, 40228204), (10, 20114102), (20, 10057051), (31, 6488420), (62, 3244210), (124, 1622105), (155, 1297684), (310, 648842), (439, 458180), (620, 324421), (739, 272180), (878, 229090), (1478, 136090), (1756, 114545), (2195, 91636), (2956, 68045), (3695, 54436), (4390, 45818), (7390, 27218), (8780, 22909), (13609, 14780)]