28560640

素因数分解:

$2^8\times 5^1\times {\mathrm{53}}^1\times {\mathrm{421}}^1$

素因数の和:495

約数の個数: 72

約数和(自身を含む): 69868008

約数和(自身を除く): 41307368

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 53, 64, 80, 106, 128, 160, 212, 256, 265, 320, 421, 424, 530, 640, 842, 848, 1060, 1280, 1684, 1696, 2105, 2120, 3368, 3392, 4210, 4240, 6736, 6784, 8420, 8480, 13472, 13568, 16840, 16960, 22313, 26944, 33680, 33920, 44626, 53888, 67360, 67840, 89252, 107776, 111565, 134720, 178504, 223130, 269440, 357008, 446260, 538880, 714016, 892520, 1428032, 1785040, 2856064, 3570080, 5712128, 7140160, 14280320, 28560640]

約数ペア:

[(1, 28560640), (2, 14280320), (4, 7140160), (5, 5712128), (8, 3570080), (10, 2856064), (16, 1785040), (20, 1428032), (32, 892520), (40, 714016), (53, 538880), (64, 446260), (80, 357008), (106, 269440), (128, 223130), (160, 178504), (212, 134720), (256, 111565), (265, 107776), (320, 89252), (421, 67840), (424, 67360), (530, 53888), (640, 44626), (842, 33920), (848, 33680), (1060, 26944), (1280, 22313), (1684, 16960), (1696, 16840), (2105, 13568), (2120, 13472), (3368, 8480), (3392, 8420), (4210, 6784), (4240, 6736)]