647400667040

素因数分解:

$2^5\times 5^1\times {\mathrm{641}}^1\times {\mathrm{6312409}}^1$

素因数の和:6313065

約数の個数: 48

約数和(自身を含む): 1531870409160

約数和(自身を除く): 884469742120

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 641, 1282, 2564, 3205, 5128, 6410, 10256, 12820, 20512, 25640, 51280, 102560, 6312409, 12624818, 25249636, 31562045, 50499272, 63124090, 100998544, 126248180, 201997088, 252496360, 504992720, 1009985440, 4046254169, 8092508338, 16185016676, 20231270845, 32370033352, 40462541690, 64740066704, 80925083380, 129480133408, 161850166760, 323700333520, 647400667040]

約数ペア:

[(1, 647400667040), (2, 323700333520), (4, 161850166760), (5, 129480133408), (8, 80925083380), (10, 64740066704), (16, 40462541690), (20, 32370033352), (32, 20231270845), (40, 16185016676), (80, 8092508338), (160, 4046254169), (641, 1009985440), (1282, 504992720), (2564, 252496360), (3205, 201997088), (5128, 126248180), (6410, 100998544), (10256, 63124090), (12820, 50499272), (20512, 31562045), (25640, 25249636), (51280, 12624818), (102560, 6312409)]