18537350

素因数分解:

$2^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{19}}^2\times {\mathrm{79}}^1$

素因数の和:142

約数の個数: 72

約数和(自身を含む): 39684960

約数和(自身を除く): 21147610

約数列:

[1, 2, 5, 10, 13, 19, 25, 26, 38, 50, 65, 79, 95, 130, 158, 190, 247, 325, 361, 395, 475, 494, 650, 722, 790, 950, 1027, 1235, 1501, 1805, 1975, 2054, 2470, 3002, 3610, 3950, 4693, 5135, 6175, 7505, 9025, 9386, 10270, 12350, 15010, 18050, 19513, 23465, 25675, 28519, 37525, 39026, 46930, 51350, 57038, 75050, 97565, 117325, 142595, 195130, 234650, 285190, 370747, 487825, 712975, 741494, 975650, 1425950, 1853735, 3707470, 9268675, 18537350]

約数ペア:

[(1, 18537350), (2, 9268675), (5, 3707470), (10, 1853735), (13, 1425950), (19, 975650), (25, 741494), (26, 712975), (38, 487825), (50, 370747), (65, 285190), (79, 234650), (95, 195130), (130, 142595), (158, 117325), (190, 97565), (247, 75050), (325, 57038), (361, 51350), (395, 46930), (475, 39026), (494, 37525), (650, 28519), (722, 25675), (790, 23465), (950, 19513), (1027, 18050), (1235, 15010), (1501, 12350), (1805, 10270), (1975, 9386), (2054, 9025), (2470, 7505), (3002, 6175), (3610, 5135), (3950, 4693)]