78287220

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{2081}}^1$

素因数の和:2126

約数の個数: 144

約数和(自身を含む): 272825280

約数和(自身を除く): 194538060

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 15, 18, 19, 20, 22, 30, 33, 36, 38, 44, 45, 55, 57, 60, 66, 76, 90, 95, 99, 110, 114, 132, 165, 171, 180, 190, 198, 209, 220, 228, 285, 330, 342, 380, 396, 418, 495, 570, 627, 660, 684, 836, 855, 990, 1045, 1140, 1254, 1710, 1881, 1980, 2081, 2090, 2508, 3135, 3420, 3762, 4162, 4180, 6243, 6270, 7524, 8324, 9405, 10405, 12486, 12540, 18729, 18810, 20810, 22891, 24972, 31215, 37458, 37620, 39539, 41620, 45782, 62430, 68673, 74916, 79078, 91564, 93645, 114455, 118617, 124860, 137346, 158156, 187290, 197695, 206019, 228910, 237234, 274692, 343365, 355851, 374580, 395390, 412038, 434929, 457820, 474468, 593085, 686730, 711702, 790780, 824076, 869858, 1030095, 1186170, 1304787, 1373460, 1423404, 1739716, 1779255, 2060190, 2174645, 2372340, 2609574, 3558510, 3914361, 4120380, 4349290, 5219148, 6523935, 7117020, 7828722, 8698580, 13047870, 15657444, 19571805, 26095740, 39143610, 78287220]

約数ペア:

[(1, 78287220), (2, 39143610), (3, 26095740), (4, 19571805), (5, 15657444), (6, 13047870), (9, 8698580), (10, 7828722), (11, 7117020), (12, 6523935), (15, 5219148), (18, 4349290), (19, 4120380), (20, 3914361), (22, 3558510), (30, 2609574), (33, 2372340), (36, 2174645), (38, 2060190), (44, 1779255), (45, 1739716), (55, 1423404), (57, 1373460), (60, 1304787), (66, 1186170), (76, 1030095), (90, 869858), (95, 824076), (99, 790780), (110, 711702), (114, 686730), (132, 593085), (165, 474468), (171, 457820), (180, 434929), (190, 412038), (198, 395390), (209, 374580), (220, 355851), (228, 343365), (285, 274692), (330, 237234), (342, 228910), (380, 206019), (396, 197695), (418, 187290), (495, 158156), (570, 137346), (627, 124860), (660, 118617), (684, 114455), (836, 93645), (855, 91564), (990, 79078), (1045, 74916), (1140, 68673), (1254, 62430), (1710, 45782), (1881, 41620), (1980, 39539), (2081, 37620), (2090, 37458), (2508, 31215), (3135, 24972), (3420, 22891), (3762, 20810), (4162, 18810), (4180, 18729), (6243, 12540), (6270, 12486), (7524, 10405), (8324, 9405)]