640509240

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{14387}}^1$

素因数の和:14461

約数の個数: 128

約数和(自身を含む): 2237621760

約数和(自身を除く): 1597112520

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 53, 56, 60, 70, 84, 105, 106, 120, 140, 159, 168, 210, 212, 265, 280, 318, 371, 420, 424, 530, 636, 742, 795, 840, 1060, 1113, 1272, 1484, 1590, 1855, 2120, 2226, 2968, 3180, 3710, 4452, 5565, 6360, 7420, 8904, 11130, 14387, 14840, 22260, 28774, 43161, 44520, 57548, 71935, 86322, 100709, 115096, 143870, 172644, 201418, 215805, 287740, 302127, 345288, 402836, 431610, 503545, 575480, 604254, 762511, 805672, 863220, 1007090, 1208508, 1510635, 1525022, 1726440, 2014180, 2287533, 2417016, 3021270, 3050044, 3812555, 4028360, 4575066, 5337577, 6042540, 6100088, 7625110, 9150132, 10675154, 11437665, 12085080, 15250220, 16012731, 18300264, 21350308, 22875330, 26687885, 30500440, 32025462, 42700616, 45750660, 53375770, 64050924, 80063655, 91501320, 106751540, 128101848, 160127310, 213503080, 320254620, 640509240]

約数ペア:

[(1, 640509240), (2, 320254620), (3, 213503080), (4, 160127310), (5, 128101848), (6, 106751540), (7, 91501320), (8, 80063655), (10, 64050924), (12, 53375770), (14, 45750660), (15, 42700616), (20, 32025462), (21, 30500440), (24, 26687885), (28, 22875330), (30, 21350308), (35, 18300264), (40, 16012731), (42, 15250220), (53, 12085080), (56, 11437665), (60, 10675154), (70, 9150132), (84, 7625110), (105, 6100088), (106, 6042540), (120, 5337577), (140, 4575066), (159, 4028360), (168, 3812555), (210, 3050044), (212, 3021270), (265, 2417016), (280, 2287533), (318, 2014180), (371, 1726440), (420, 1525022), (424, 1510635), (530, 1208508), (636, 1007090), (742, 863220), (795, 805672), (840, 762511), (1060, 604254), (1113, 575480), (1272, 503545), (1484, 431610), (1590, 402836), (1855, 345288), (2120, 302127), (2226, 287740), (2968, 215805), (3180, 201418), (3710, 172644), (4452, 143870), (5565, 115096), (6360, 100709), (7420, 86322), (8904, 71935), (11130, 57548), (14387, 44520), (14840, 43161), (22260, 28774)]