21961061200

素因数分解:

$2^4\times 5^2\times {\mathrm{13}}^1\times {\mathrm{257}}^1\times {\mathrm{16433}}^1$

素因数の和:16721

約数の個数: 120

約数和(自身を含む): 57044583288

約数和(自身を除く): 35083522088

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 25, 26, 40, 50, 52, 65, 80, 100, 104, 130, 200, 208, 257, 260, 325, 400, 514, 520, 650, 1028, 1040, 1285, 1300, 2056, 2570, 2600, 3341, 4112, 5140, 5200, 6425, 6682, 10280, 12850, 13364, 16433, 16705, 20560, 25700, 26728, 32866, 33410, 51400, 53456, 65732, 66820, 82165, 83525, 102800, 131464, 133640, 164330, 167050, 213629, 262928, 267280, 328660, 334100, 410825, 427258, 657320, 668200, 821650, 854516, 1068145, 1314640, 1336400, 1643300, 1709032, 2136290, 3286600, 3418064, 4223281, 4272580, 5340725, 6573200, 8446562, 8545160, 10681450, 16893124, 17090320, 21116405, 21362900, 33786248, 42232810, 42725800, 54902653, 67572496, 84465620, 85451600, 105582025, 109805306, 168931240, 211164050, 219610612, 274513265, 337862480, 422328100, 439221224, 549026530, 844656200, 878442448, 1098053060, 1372566325, 1689312400, 2196106120, 2745132650, 4392212240, 5490265300, 10980530600, 21961061200]

約数ペア:

[(1, 21961061200), (2, 10980530600), (4, 5490265300), (5, 4392212240), (8, 2745132650), (10, 2196106120), (13, 1689312400), (16, 1372566325), (20, 1098053060), (25, 878442448), (26, 844656200), (40, 549026530), (50, 439221224), (52, 422328100), (65, 337862480), (80, 274513265), (100, 219610612), (104, 211164050), (130, 168931240), (200, 109805306), (208, 105582025), (257, 85451600), (260, 84465620), (325, 67572496), (400, 54902653), (514, 42725800), (520, 42232810), (650, 33786248), (1028, 21362900), (1040, 21116405), (1285, 17090320), (1300, 16893124), (2056, 10681450), (2570, 8545160), (2600, 8446562), (3341, 6573200), (4112, 5340725), (5140, 4272580), (5200, 4223281), (6425, 3418064), (6682, 3286600), (10280, 2136290), (12850, 1709032), (13364, 1643300), (16433, 1336400), (16705, 1314640), (20560, 1068145), (25700, 854516), (26728, 821650), (32866, 668200), (33410, 657320), (51400, 427258), (53456, 410825), (65732, 334100), (66820, 328660), (82165, 267280), (83525, 262928), (102800, 213629), (131464, 167050), (133640, 164330)]