325565560

素因数分解:

$2^3\times 5^1\times {\mathrm{89}}^1\times {\mathrm{109}}^1\times {\mathrm{839}}^1$

素因数の和:1048

約数の個数: 64

約数和(自身を含む): 748440000

約数和(自身を除く): 422874440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 89, 109, 178, 218, 356, 436, 445, 545, 712, 839, 872, 890, 1090, 1678, 1780, 2180, 3356, 3560, 4195, 4360, 6712, 8390, 9701, 16780, 19402, 33560, 38804, 48505, 74671, 77608, 91451, 97010, 149342, 182902, 194020, 298684, 365804, 373355, 388040, 457255, 597368, 731608, 746710, 914510, 1493420, 1829020, 2986840, 3658040, 8139139, 16278278, 32556556, 40695695, 65113112, 81391390, 162782780, 325565560]

約数ペア:

[(1, 325565560), (2, 162782780), (4, 81391390), (5, 65113112), (8, 40695695), (10, 32556556), (20, 16278278), (40, 8139139), (89, 3658040), (109, 2986840), (178, 1829020), (218, 1493420), (356, 914510), (436, 746710), (445, 731608), (545, 597368), (712, 457255), (839, 388040), (872, 373355), (890, 365804), (1090, 298684), (1678, 194020), (1780, 182902), (2180, 149342), (3356, 97010), (3560, 91451), (4195, 77608), (4360, 74671), (6712, 48505), (8390, 38804), (9701, 33560), (16780, 19402)]