20368920

素因数分解:

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

素因数の和:1225

約数の個数: 128

約数和(自身を含む): 71850240

約数和(自身を除く): 51481320

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 13, 15, 20, 22, 24, 26, 30, 33, 39, 40, 44, 52, 55, 60, 65, 66, 78, 88, 104, 110, 120, 130, 132, 143, 156, 165, 195, 220, 260, 264, 286, 312, 330, 390, 429, 440, 520, 572, 660, 715, 780, 858, 1144, 1187, 1320, 1430, 1560, 1716, 2145, 2374, 2860, 3432, 3561, 4290, 4748, 5720, 5935, 7122, 8580, 9496, 11870, 13057, 14244, 15431, 17160, 17805, 23740, 26114, 28488, 30862, 35610, 39171, 46293, 47480, 52228, 61724, 65285, 71220, 77155, 78342, 92586, 104456, 123448, 130570, 142440, 154310, 156684, 169741, 185172, 195855, 231465, 261140, 308620, 313368, 339482, 370344, 391710, 462930, 509223, 522280, 617240, 678964, 783420, 848705, 925860, 1018446, 1357928, 1566840, 1697410, 1851720, 2036892, 2546115, 3394820, 4073784, 5092230, 6789640, 10184460, 20368920]

約数ペア:

[(1, 20368920), (2, 10184460), (3, 6789640), (4, 5092230), (5, 4073784), (6, 3394820), (8, 2546115), (10, 2036892), (11, 1851720), (12, 1697410), (13, 1566840), (15, 1357928), (20, 1018446), (22, 925860), (24, 848705), (26, 783420), (30, 678964), (33, 617240), (39, 522280), (40, 509223), (44, 462930), (52, 391710), (55, 370344), (60, 339482), (65, 313368), (66, 308620), (78, 261140), (88, 231465), (104, 195855), (110, 185172), (120, 169741), (130, 156684), (132, 154310), (143, 142440), (156, 130570), (165, 123448), (195, 104456), (220, 92586), (260, 78342), (264, 77155), (286, 71220), (312, 65285), (330, 61724), (390, 52228), (429, 47480), (440, 46293), (520, 39171), (572, 35610), (660, 30862), (715, 28488), (780, 26114), (858, 23740), (1144, 17805), (1187, 17160), (1320, 15431), (1430, 14244), (1560, 13057), (1716, 11870), (2145, 9496), (2374, 8580), (2860, 7122), (3432, 5935), (3561, 5720), (4290, 4748)]