19220490

素因数分解:

$2^1\times 3^4\times 5^1\times {\mathrm{61}}^1\times {\mathrm{389}}^1$

素因数の和:469

約数の個数: 80

約数和(自身を含む): 52664040

約数和(自身を除く): 33443550

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 45, 54, 61, 81, 90, 122, 135, 162, 183, 270, 305, 366, 389, 405, 549, 610, 778, 810, 915, 1098, 1167, 1647, 1830, 1945, 2334, 2745, 3294, 3501, 3890, 4941, 5490, 5835, 7002, 8235, 9882, 10503, 11670, 16470, 17505, 21006, 23729, 24705, 31509, 35010, 47458, 49410, 52515, 63018, 71187, 105030, 118645, 142374, 157545, 213561, 237290, 315090, 355935, 427122, 640683, 711870, 1067805, 1281366, 1922049, 2135610, 3203415, 3844098, 6406830, 9610245, 19220490]

約数ペア:

[(1, 19220490), (2, 9610245), (3, 6406830), (5, 3844098), (6, 3203415), (9, 2135610), (10, 1922049), (15, 1281366), (18, 1067805), (27, 711870), (30, 640683), (45, 427122), (54, 355935), (61, 315090), (81, 237290), (90, 213561), (122, 157545), (135, 142374), (162, 118645), (183, 105030), (270, 71187), (305, 63018), (366, 52515), (389, 49410), (405, 47458), (549, 35010), (610, 31509), (778, 24705), (810, 23729), (915, 21006), (1098, 17505), (1167, 16470), (1647, 11670), (1830, 10503), (1945, 9882), (2334, 8235), (2745, 7002), (3294, 5835), (3501, 5490), (3890, 4941)]