18140880

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{131}}^1\times {\mathrm{577}}^1$

素因数の和:724

約数の個数: 80

約数和(自身を含む): 56764224

約数和(自身を除く): 38623344

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 131, 240, 262, 393, 524, 577, 655, 786, 1048, 1154, 1310, 1572, 1731, 1965, 2096, 2308, 2620, 2885, 3144, 3462, 3930, 4616, 5240, 5770, 6288, 6924, 7860, 8655, 9232, 10480, 11540, 13848, 15720, 17310, 23080, 27696, 31440, 34620, 46160, 69240, 75587, 138480, 151174, 226761, 302348, 377935, 453522, 604696, 755870, 907044, 1133805, 1209392, 1511740, 1814088, 2267610, 3023480, 3628176, 4535220, 6046960, 9070440, 18140880]

約数ペア:

[(1, 18140880), (2, 9070440), (3, 6046960), (4, 4535220), (5, 3628176), (6, 3023480), (8, 2267610), (10, 1814088), (12, 1511740), (15, 1209392), (16, 1133805), (20, 907044), (24, 755870), (30, 604696), (40, 453522), (48, 377935), (60, 302348), (80, 226761), (120, 151174), (131, 138480), (240, 75587), (262, 69240), (393, 46160), (524, 34620), (577, 31440), (655, 27696), (786, 23080), (1048, 17310), (1154, 15720), (1310, 13848), (1572, 11540), (1731, 10480), (1965, 9232), (2096, 8655), (2308, 7860), (2620, 6924), (2885, 6288), (3144, 5770), (3462, 5240), (3930, 4616)]