1212860120

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{978113}}^1$

素因数の和:978155

約数の個数: 32

約数和(自身を含む): 2816968320

約数和(自身を除く): 1604108200

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 978113, 1956226, 3912452, 4890565, 7824904, 9781130, 19562260, 30321503, 39124520, 60643006, 121286012, 151607515, 242572024, 303215030, 606430060, 1212860120]

約数ペア:

[(1, 1212860120), (2, 606430060), (4, 303215030), (5, 242572024), (8, 151607515), (10, 121286012), (20, 60643006), (31, 39124520), (40, 30321503), (62, 19562260), (124, 9781130), (155, 7824904), (248, 4890565), (310, 3912452), (620, 1956226), (1240, 978113)]