210478840

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{1187}}^1$

素因数の和:1253

約数の個数: 128

約数和(自身を含む): 574801920

約数和(自身を除く): 364323080

約数列:

[1, 2, 4, 5, 8, 10, 11, 13, 20, 22, 26, 31, 40, 44, 52, 55, 62, 65, 88, 104, 110, 124, 130, 143, 155, 220, 248, 260, 286, 310, 341, 403, 440, 520, 572, 620, 682, 715, 806, 1144, 1187, 1240, 1364, 1430, 1612, 1705, 2015, 2374, 2728, 2860, 3224, 3410, 4030, 4433, 4748, 5720, 5935, 6820, 8060, 8866, 9496, 11870, 13057, 13640, 15431, 16120, 17732, 22165, 23740, 26114, 30862, 35464, 36797, 44330, 47480, 52228, 61724, 65285, 73594, 77155, 88660, 104456, 123448, 130570, 147188, 154310, 169741, 177320, 183985, 261140, 294376, 308620, 339482, 367970, 404767, 478361, 522280, 617240, 678964, 735940, 809534, 848705, 956722, 1357928, 1471880, 1619068, 1697410, 1913444, 2023835, 2391805, 3238136, 3394820, 3826888, 4047670, 4783610, 5261971, 6789640, 8095340, 9567220, 10523942, 16190680, 19134440, 21047884, 26309855, 42095768, 52619710, 105239420, 210478840]

約数ペア:

[(1, 210478840), (2, 105239420), (4, 52619710), (5, 42095768), (8, 26309855), (10, 21047884), (11, 19134440), (13, 16190680), (20, 10523942), (22, 9567220), (26, 8095340), (31, 6789640), (40, 5261971), (44, 4783610), (52, 4047670), (55, 3826888), (62, 3394820), (65, 3238136), (88, 2391805), (104, 2023835), (110, 1913444), (124, 1697410), (130, 1619068), (143, 1471880), (155, 1357928), (220, 956722), (248, 848705), (260, 809534), (286, 735940), (310, 678964), (341, 617240), (403, 522280), (440, 478361), (520, 404767), (572, 367970), (620, 339482), (682, 308620), (715, 294376), (806, 261140), (1144, 183985), (1187, 177320), (1240, 169741), (1364, 154310), (1430, 147188), (1612, 130570), (1705, 123448), (2015, 104456), (2374, 88660), (2728, 77155), (2860, 73594), (3224, 65285), (3410, 61724), (4030, 52228), (4433, 47480), (4748, 44330), (5720, 36797), (5935, 35464), (6820, 30862), (8060, 26114), (8866, 23740), (9496, 22165), (11870, 17732), (13057, 16120), (13640, 15431)]