206480

素因数分解:

$2^4\times 5^1\times {\mathrm{29}}^1\times {\mathrm{89}}^1$

素因数の和:131

約数の個数: 40

約数和(自身を含む): 502200

約数和(自身を除く): 295720

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 29, 40, 58, 80, 89, 116, 145, 178, 232, 290, 356, 445, 464, 580, 712, 890, 1160, 1424, 1780, 2320, 2581, 3560, 5162, 7120, 10324, 12905, 20648, 25810, 41296, 51620, 103240, 206480]

約数ペア:

[(1, 206480), (2, 103240), (4, 51620), (5, 41296), (8, 25810), (10, 20648), (16, 12905), (20, 10324), (29, 7120), (40, 5162), (58, 3560), (80, 2581), (89, 2320), (116, 1780), (145, 1424), (178, 1160), (232, 890), (290, 712), (356, 580), (445, 464)]