18685740

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{443}}^1$

素因数の和:511

約数の個数: 96

約数和(自身を含む): 56689920

約数和(自身を除く): 38004180

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 19, 20, 30, 37, 38, 57, 60, 74, 76, 95, 111, 114, 148, 185, 190, 222, 228, 285, 370, 380, 443, 444, 555, 570, 703, 740, 886, 1110, 1140, 1329, 1406, 1772, 2109, 2215, 2220, 2658, 2812, 3515, 4218, 4430, 5316, 6645, 7030, 8417, 8436, 8860, 10545, 13290, 14060, 16391, 16834, 21090, 25251, 26580, 32782, 33668, 42085, 42180, 49173, 50502, 65564, 81955, 84170, 98346, 101004, 126255, 163910, 168340, 196692, 245865, 252510, 311429, 327820, 491730, 505020, 622858, 934287, 983460, 1245716, 1557145, 1868574, 3114290, 3737148, 4671435, 6228580, 9342870, 18685740]

約数ペア:

[(1, 18685740), (2, 9342870), (3, 6228580), (4, 4671435), (5, 3737148), (6, 3114290), (10, 1868574), (12, 1557145), (15, 1245716), (19, 983460), (20, 934287), (30, 622858), (37, 505020), (38, 491730), (57, 327820), (60, 311429), (74, 252510), (76, 245865), (95, 196692), (111, 168340), (114, 163910), (148, 126255), (185, 101004), (190, 98346), (222, 84170), (228, 81955), (285, 65564), (370, 50502), (380, 49173), (443, 42180), (444, 42085), (555, 33668), (570, 32782), (703, 26580), (740, 25251), (886, 21090), (1110, 16834), (1140, 16391), (1329, 14060), (1406, 13290), (1772, 10545), (2109, 8860), (2215, 8436), (2220, 8417), (2658, 7030), (2812, 6645), (3515, 5316), (4218, 4430)]