20486533900

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{47}}^1\times {\mathrm{541}}^1\times {\mathrm{1151}}^1$

素因数の和:1760

約数の個数: 144

約数和(自身を含む): 52028669952

約数和(自身を除く): 31542136052

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 47, 50, 70, 94, 100, 140, 175, 188, 235, 329, 350, 470, 541, 658, 700, 940, 1082, 1151, 1175, 1316, 1645, 2164, 2302, 2350, 2705, 3290, 3787, 4604, 4700, 5410, 5755, 6580, 7574, 8057, 8225, 10820, 11510, 13525, 15148, 16114, 16450, 18935, 23020, 25427, 27050, 28775, 32228, 32900, 37870, 40285, 50854, 54097, 54100, 57550, 75740, 80570, 94675, 101708, 108194, 115100, 127135, 161140, 177989, 189350, 201425, 216388, 254270, 270485, 355978, 378679, 378700, 402850, 508540, 540970, 622691, 635675, 711956, 757358, 805700, 889945, 1081940, 1245382, 1271350, 1352425, 1514716, 1779890, 1893395, 2490764, 2542700, 2704850, 3113455, 3559780, 3786790, 4358837, 4449725, 5409700, 6226910, 7573580, 8717674, 8899450, 9466975, 12453820, 15567275, 17435348, 17798900, 18933950, 21794185, 29266477, 31134550, 37867900, 43588370, 58532954, 62269100, 87176740, 108970925, 117065908, 146332385, 204865339, 217941850, 292664770, 409730678, 435883700, 585329540, 731661925, 819461356, 1024326695, 1463323850, 2048653390, 2926647700, 4097306780, 5121633475, 10243266950, 20486533900]

約数ペア:

[(1, 20486533900), (2, 10243266950), (4, 5121633475), (5, 4097306780), (7, 2926647700), (10, 2048653390), (14, 1463323850), (20, 1024326695), (25, 819461356), (28, 731661925), (35, 585329540), (47, 435883700), (50, 409730678), (70, 292664770), (94, 217941850), (100, 204865339), (140, 146332385), (175, 117065908), (188, 108970925), (235, 87176740), (329, 62269100), (350, 58532954), (470, 43588370), (541, 37867900), (658, 31134550), (700, 29266477), (940, 21794185), (1082, 18933950), (1151, 17798900), (1175, 17435348), (1316, 15567275), (1645, 12453820), (2164, 9466975), (2302, 8899450), (2350, 8717674), (2705, 7573580), (3290, 6226910), (3787, 5409700), (4604, 4449725), (4700, 4358837), (5410, 3786790), (5755, 3559780), (6580, 3113455), (7574, 2704850), (8057, 2542700), (8225, 2490764), (10820, 1893395), (11510, 1779890), (13525, 1514716), (15148, 1352425), (16114, 1271350), (16450, 1245382), (18935, 1081940), (23020, 889945), (25427, 805700), (27050, 757358), (28775, 711956), (32228, 635675), (32900, 622691), (37870, 540970), (40285, 508540), (50854, 402850), (54097, 378700), (54100, 378679), (57550, 355978), (75740, 270485), (80570, 254270), (94675, 216388), (101708, 201425), (108194, 189350), (115100, 177989), (127135, 161140)]