20322120

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{1861}}^1$

素因数の和:1895

約数の個数: 128

約数和(自身を含む): 75075840

約数和(自身を除く): 54753720

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 13, 14, 15, 20, 21, 24, 26, 28, 30, 35, 39, 40, 42, 52, 56, 60, 65, 70, 78, 84, 91, 104, 105, 120, 130, 140, 156, 168, 182, 195, 210, 260, 273, 280, 312, 364, 390, 420, 455, 520, 546, 728, 780, 840, 910, 1092, 1365, 1560, 1820, 1861, 2184, 2730, 3640, 3722, 5460, 5583, 7444, 9305, 10920, 11166, 13027, 14888, 18610, 22332, 24193, 26054, 27915, 37220, 39081, 44664, 48386, 52108, 55830, 65135, 72579, 74440, 78162, 96772, 104216, 111660, 120965, 130270, 145158, 156324, 169351, 193544, 195405, 223320, 241930, 260540, 290316, 312648, 338702, 362895, 390810, 483860, 508053, 521080, 580632, 677404, 725790, 781620, 846755, 967720, 1016106, 1354808, 1451580, 1563240, 1693510, 2032212, 2540265, 2903160, 3387020, 4064424, 5080530, 6774040, 10161060, 20322120]

約数ペア:

[(1, 20322120), (2, 10161060), (3, 6774040), (4, 5080530), (5, 4064424), (6, 3387020), (7, 2903160), (8, 2540265), (10, 2032212), (12, 1693510), (13, 1563240), (14, 1451580), (15, 1354808), (20, 1016106), (21, 967720), (24, 846755), (26, 781620), (28, 725790), (30, 677404), (35, 580632), (39, 521080), (40, 508053), (42, 483860), (52, 390810), (56, 362895), (60, 338702), (65, 312648), (70, 290316), (78, 260540), (84, 241930), (91, 223320), (104, 195405), (105, 193544), (120, 169351), (130, 156324), (140, 145158), (156, 130270), (168, 120965), (182, 111660), (195, 104216), (210, 96772), (260, 78162), (273, 74440), (280, 72579), (312, 65135), (364, 55830), (390, 52108), (420, 48386), (455, 44664), (520, 39081), (546, 37220), (728, 27915), (780, 26054), (840, 24193), (910, 22332), (1092, 18610), (1365, 14888), (1560, 13027), (1820, 11166), (1861, 10920), (2184, 9305), (2730, 7444), (3640, 5583), (3722, 5460)]