390699680

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{348839}}^1$

素因数の和:348861

約数の個数: 48

約数和(自身を含む): 1054892160

約数和(自身を除く): 664192480

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 70, 80, 112, 140, 160, 224, 280, 560, 1120, 348839, 697678, 1395356, 1744195, 2441873, 2790712, 3488390, 4883746, 5581424, 6976780, 9767492, 11162848, 12209365, 13953560, 19534984, 24418730, 27907120, 39069968, 48837460, 55814240, 78139936, 97674920, 195349840, 390699680]

約数ペア:

[(1, 390699680), (2, 195349840), (4, 97674920), (5, 78139936), (7, 55814240), (8, 48837460), (10, 39069968), (14, 27907120), (16, 24418730), (20, 19534984), (28, 13953560), (32, 12209365), (35, 11162848), (40, 9767492), (56, 6976780), (70, 5581424), (80, 4883746), (112, 3488390), (140, 2790712), (160, 2441873), (224, 1744195), (280, 1395356), (560, 697678), (1120, 348839)]