40990640

素因数分解:

$2^4\times 5^1\times {\mathrm{307}}^1\times {\mathrm{1669}}^1$

素因数の和:1989

約数の個数: 40

約数和(自身を含む): 95670960

約数和(自身を除く): 54680320

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 307, 614, 1228, 1535, 1669, 2456, 3070, 3338, 4912, 6140, 6676, 8345, 12280, 13352, 16690, 24560, 26704, 33380, 66760, 133520, 512383, 1024766, 2049532, 2561915, 4099064, 5123830, 8198128, 10247660, 20495320, 40990640]

約数ペア:

[(1, 40990640), (2, 20495320), (4, 10247660), (5, 8198128), (8, 5123830), (10, 4099064), (16, 2561915), (20, 2049532), (40, 1024766), (80, 512383), (307, 133520), (614, 66760), (1228, 33380), (1535, 26704), (1669, 24560), (2456, 16690), (3070, 13352), (3338, 12280), (4912, 8345), (6140, 6676)]