1949965720

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{36571}}^1$

素因数の和:36656

約数の個数: 64

約数和(自身を含む): 4634403840

約数和(自身を除く): 2684438120

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 43, 62, 86, 124, 155, 172, 215, 248, 310, 344, 430, 620, 860, 1240, 1333, 1720, 2666, 5332, 6665, 10664, 13330, 26660, 36571, 53320, 73142, 146284, 182855, 292568, 365710, 731420, 1133701, 1462840, 1572553, 2267402, 3145106, 4534804, 5668505, 6290212, 7862765, 9069608, 11337010, 12580424, 15725530, 22674020, 31451060, 45348040, 48749143, 62902120, 97498286, 194996572, 243745715, 389993144, 487491430, 974982860, 1949965720]

約数ペア:

[(1, 1949965720), (2, 974982860), (4, 487491430), (5, 389993144), (8, 243745715), (10, 194996572), (20, 97498286), (31, 62902120), (40, 48749143), (43, 45348040), (62, 31451060), (86, 22674020), (124, 15725530), (155, 12580424), (172, 11337010), (215, 9069608), (248, 7862765), (310, 6290212), (344, 5668505), (430, 4534804), (620, 3145106), (860, 2267402), (1240, 1572553), (1333, 1462840), (1720, 1133701), (2666, 731420), (5332, 365710), (6665, 292568), (10664, 182855), (13330, 146284), (26660, 73142), (36571, 53320)]