21689742100

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{13127}}^1$

素因数の和:13226

約数の個数: 144

約数和(自身を含む): 53602569216

約数和(自身を除く): 31912827116

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 31, 41, 50, 52, 62, 65, 82, 100, 124, 130, 155, 164, 205, 260, 310, 325, 403, 410, 533, 620, 650, 775, 806, 820, 1025, 1066, 1271, 1300, 1550, 1612, 2015, 2050, 2132, 2542, 2665, 3100, 4030, 4100, 5084, 5330, 6355, 8060, 10075, 10660, 12710, 13127, 13325, 16523, 20150, 25420, 26254, 26650, 31775, 33046, 40300, 52508, 53300, 63550, 65635, 66092, 82615, 127100, 131270, 165230, 170651, 262540, 328175, 330460, 341302, 406937, 413075, 538207, 656350, 682604, 813874, 826150, 853255, 1076414, 1312700, 1627748, 1652300, 1706510, 2034685, 2152828, 2691035, 3413020, 4069370, 4266275, 5290181, 5382070, 6996691, 8138740, 8532550, 10173425, 10580362, 10764140, 13455175, 13993382, 16684417, 17065100, 20346850, 21160724, 26450905, 26910350, 27986764, 33368834, 34983455, 40693700, 52901810, 53820700, 66737668, 69966910, 83422085, 105803620, 132254525, 139933820, 166844170, 174917275, 216897421, 264509050, 333688340, 349834550, 417110425, 433794842, 529018100, 699669100, 834220850, 867589684, 1084487105, 1668441700, 2168974210, 4337948420, 5422435525, 10844871050, 21689742100]

約数ペア:

[(1, 21689742100), (2, 10844871050), (4, 5422435525), (5, 4337948420), (10, 2168974210), (13, 1668441700), (20, 1084487105), (25, 867589684), (26, 834220850), (31, 699669100), (41, 529018100), (50, 433794842), (52, 417110425), (62, 349834550), (65, 333688340), (82, 264509050), (100, 216897421), (124, 174917275), (130, 166844170), (155, 139933820), (164, 132254525), (205, 105803620), (260, 83422085), (310, 69966910), (325, 66737668), (403, 53820700), (410, 52901810), (533, 40693700), (620, 34983455), (650, 33368834), (775, 27986764), (806, 26910350), (820, 26450905), (1025, 21160724), (1066, 20346850), (1271, 17065100), (1300, 16684417), (1550, 13993382), (1612, 13455175), (2015, 10764140), (2050, 10580362), (2132, 10173425), (2542, 8532550), (2665, 8138740), (3100, 6996691), (4030, 5382070), (4100, 5290181), (5084, 4266275), (5330, 4069370), (6355, 3413020), (8060, 2691035), (10075, 2152828), (10660, 2034685), (12710, 1706510), (13127, 1652300), (13325, 1627748), (16523, 1312700), (20150, 1076414), (25420, 853255), (26254, 826150), (26650, 813874), (31775, 682604), (33046, 656350), (40300, 538207), (52508, 413075), (53300, 406937), (63550, 341302), (65635, 330460), (66092, 328175), (82615, 262540), (127100, 170651), (131270, 165230)]