210817100

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{257}}^1\times {\mathrm{631}}^1$

素因数の和:915

約数の個数: 72

約数和(自身を含む): 495364128

約数和(自身を除く): 284547028

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 50, 52, 65, 100, 130, 257, 260, 325, 514, 631, 650, 1028, 1262, 1285, 1300, 2524, 2570, 3155, 3341, 5140, 6310, 6425, 6682, 8203, 12620, 12850, 13364, 15775, 16406, 16705, 25700, 31550, 32812, 33410, 41015, 63100, 66820, 82030, 83525, 162167, 164060, 167050, 205075, 324334, 334100, 410150, 648668, 810835, 820300, 1621670, 2108171, 3243340, 4054175, 4216342, 8108350, 8432684, 10540855, 16216700, 21081710, 42163420, 52704275, 105408550, 210817100]

約数ペア:

[(1, 210817100), (2, 105408550), (4, 52704275), (5, 42163420), (10, 21081710), (13, 16216700), (20, 10540855), (25, 8432684), (26, 8108350), (50, 4216342), (52, 4054175), (65, 3243340), (100, 2108171), (130, 1621670), (257, 820300), (260, 810835), (325, 648668), (514, 410150), (631, 334100), (650, 324334), (1028, 205075), (1262, 167050), (1285, 164060), (1300, 162167), (2524, 83525), (2570, 82030), (3155, 66820), (3341, 63100), (5140, 41015), (6310, 33410), (6425, 32812), (6682, 31550), (8203, 25700), (12620, 16705), (12850, 16406), (13364, 15775)]