19665240

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{571}}^1$

素因数の和:633

約数の個数: 128

約数和(自身を含む): 69189120

約数和(自身を除く): 49523880

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 41, 42, 56, 60, 70, 82, 84, 105, 120, 123, 140, 164, 168, 205, 210, 246, 280, 287, 328, 410, 420, 492, 571, 574, 615, 820, 840, 861, 984, 1142, 1148, 1230, 1435, 1640, 1713, 1722, 2284, 2296, 2460, 2855, 2870, 3426, 3444, 3997, 4305, 4568, 4920, 5710, 5740, 6852, 6888, 7994, 8565, 8610, 11420, 11480, 11991, 13704, 15988, 17130, 17220, 19985, 22840, 23411, 23982, 31976, 34260, 34440, 39970, 46822, 47964, 59955, 68520, 70233, 79940, 93644, 95928, 117055, 119910, 140466, 159880, 163877, 187288, 234110, 239820, 280932, 327754, 351165, 468220, 479640, 491631, 561864, 655508, 702330, 819385, 936440, 983262, 1311016, 1404660, 1638770, 1966524, 2458155, 2809320, 3277540, 3933048, 4916310, 6555080, 9832620, 19665240]

約数ペア:

[(1, 19665240), (2, 9832620), (3, 6555080), (4, 4916310), (5, 3933048), (6, 3277540), (7, 2809320), (8, 2458155), (10, 1966524), (12, 1638770), (14, 1404660), (15, 1311016), (20, 983262), (21, 936440), (24, 819385), (28, 702330), (30, 655508), (35, 561864), (40, 491631), (41, 479640), (42, 468220), (56, 351165), (60, 327754), (70, 280932), (82, 239820), (84, 234110), (105, 187288), (120, 163877), (123, 159880), (140, 140466), (164, 119910), (168, 117055), (205, 95928), (210, 93644), (246, 79940), (280, 70233), (287, 68520), (328, 59955), (410, 47964), (420, 46822), (492, 39970), (571, 34440), (574, 34260), (615, 31976), (820, 23982), (840, 23411), (861, 22840), (984, 19985), (1142, 17220), (1148, 17130), (1230, 15988), (1435, 13704), (1640, 11991), (1713, 11480), (1722, 11420), (2284, 8610), (2296, 8565), (2460, 7994), (2855, 6888), (2870, 6852), (3426, 5740), (3444, 5710), (3997, 4920), (4305, 4568)]