121980

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{107}}^1$

素因数の和:138

約数の個数: 48

約数和(自身を含む): 362880

約数和(自身を除く): 240900

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 19, 20, 30, 38, 57, 60, 76, 95, 107, 114, 190, 214, 228, 285, 321, 380, 428, 535, 570, 642, 1070, 1140, 1284, 1605, 2033, 2140, 3210, 4066, 6099, 6420, 8132, 10165, 12198, 20330, 24396, 30495, 40660, 60990, 121980]

約数ペア:

[(1, 121980), (2, 60990), (3, 40660), (4, 30495), (5, 24396), (6, 20330), (10, 12198), (12, 10165), (15, 8132), (19, 6420), (20, 6099), (30, 4066), (38, 3210), (57, 2140), (60, 2033), (76, 1605), (95, 1284), (107, 1140), (114, 1070), (190, 642), (214, 570), (228, 535), (285, 428), (321, 380)]