20692620

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{239}}^1$

素因数の和:304

約数の個数: 144

約数和(自身を含む): 69713280

約数和(自身を除く): 49020660

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 20, 26, 30, 36, 37, 39, 45, 52, 60, 65, 74, 78, 90, 111, 117, 130, 148, 156, 180, 185, 195, 222, 234, 239, 260, 333, 370, 390, 444, 468, 478, 481, 555, 585, 666, 717, 740, 780, 956, 962, 1110, 1170, 1195, 1332, 1434, 1443, 1665, 1924, 2151, 2220, 2340, 2390, 2405, 2868, 2886, 3107, 3330, 3585, 4302, 4329, 4780, 4810, 5772, 6214, 6660, 7170, 7215, 8604, 8658, 8843, 9321, 9620, 10755, 12428, 14340, 14430, 15535, 17316, 17686, 18642, 21510, 21645, 26529, 27963, 28860, 31070, 35372, 37284, 43020, 43290, 44215, 46605, 53058, 55926, 62140, 79587, 86580, 88430, 93210, 106116, 111852, 114959, 132645, 139815, 159174, 176860, 186420, 229918, 265290, 279630, 318348, 344877, 397935, 459836, 530580, 559260, 574795, 689754, 795870, 1034631, 1149590, 1379508, 1591740, 1724385, 2069262, 2299180, 3448770, 4138524, 5173155, 6897540, 10346310, 20692620]

約数ペア:

[(1, 20692620), (2, 10346310), (3, 6897540), (4, 5173155), (5, 4138524), (6, 3448770), (9, 2299180), (10, 2069262), (12, 1724385), (13, 1591740), (15, 1379508), (18, 1149590), (20, 1034631), (26, 795870), (30, 689754), (36, 574795), (37, 559260), (39, 530580), (45, 459836), (52, 397935), (60, 344877), (65, 318348), (74, 279630), (78, 265290), (90, 229918), (111, 186420), (117, 176860), (130, 159174), (148, 139815), (156, 132645), (180, 114959), (185, 111852), (195, 106116), (222, 93210), (234, 88430), (239, 86580), (260, 79587), (333, 62140), (370, 55926), (390, 53058), (444, 46605), (468, 44215), (478, 43290), (481, 43020), (555, 37284), (585, 35372), (666, 31070), (717, 28860), (740, 27963), (780, 26529), (956, 21645), (962, 21510), (1110, 18642), (1170, 17686), (1195, 17316), (1332, 15535), (1434, 14430), (1443, 14340), (1665, 12428), (1924, 10755), (2151, 9620), (2220, 9321), (2340, 8843), (2390, 8658), (2405, 8604), (2868, 7215), (2886, 7170), (3107, 6660), (3330, 6214), (3585, 5772), (4302, 4810), (4329, 4780)]