19324980

素因数分解:

$2^2\times 3^4\times 5^1\times {\mathrm{79}}^1\times {\mathrm{151}}^1$

素因数の和:251

約数の個数: 120

約数和(自身を含む): 61797120

約数和(自身を除く): 42472140

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 79, 81, 90, 108, 135, 151, 158, 162, 180, 237, 270, 302, 316, 324, 395, 405, 453, 474, 540, 604, 711, 755, 790, 810, 906, 948, 1185, 1359, 1422, 1510, 1580, 1620, 1812, 2133, 2265, 2370, 2718, 2844, 3020, 3555, 4077, 4266, 4530, 4740, 5436, 6399, 6795, 7110, 8154, 8532, 9060, 10665, 11929, 12231, 12798, 13590, 14220, 16308, 20385, 21330, 23858, 24462, 25596, 27180, 31995, 35787, 40770, 42660, 47716, 48924, 59645, 61155, 63990, 71574, 81540, 107361, 119290, 122310, 127980, 143148, 178935, 214722, 238580, 244620, 322083, 357870, 429444, 536805, 644166, 715740, 966249, 1073610, 1288332, 1610415, 1932498, 2147220, 3220830, 3864996, 4831245, 6441660, 9662490, 19324980]

約数ペア:

[(1, 19324980), (2, 9662490), (3, 6441660), (4, 4831245), (5, 3864996), (6, 3220830), (9, 2147220), (10, 1932498), (12, 1610415), (15, 1288332), (18, 1073610), (20, 966249), (27, 715740), (30, 644166), (36, 536805), (45, 429444), (54, 357870), (60, 322083), (79, 244620), (81, 238580), (90, 214722), (108, 178935), (135, 143148), (151, 127980), (158, 122310), (162, 119290), (180, 107361), (237, 81540), (270, 71574), (302, 63990), (316, 61155), (324, 59645), (395, 48924), (405, 47716), (453, 42660), (474, 40770), (540, 35787), (604, 31995), (711, 27180), (755, 25596), (790, 24462), (810, 23858), (906, 21330), (948, 20385), (1185, 16308), (1359, 14220), (1422, 13590), (1510, 12798), (1580, 12231), (1620, 11929), (1812, 10665), (2133, 9060), (2265, 8532), (2370, 8154), (2718, 7110), (2844, 6795), (3020, 6399), (3555, 5436), (4077, 4740), (4266, 4530)]