261954836

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{79}}^1$

素因数の和:166

約数の個数: 144

約数和(自身を含む): 600606720

約数和(自身を除く): 338651884

約数列:

[1, 2, 4, 11, 13, 17, 22, 26, 31, 34, 44, 52, 62, 68, 79, 121, 124, 143, 158, 187, 221, 242, 286, 316, 341, 374, 403, 442, 484, 527, 572, 682, 748, 806, 869, 884, 1027, 1054, 1343, 1364, 1573, 1612, 1738, 2054, 2057, 2108, 2431, 2449, 2686, 3146, 3476, 3751, 4108, 4114, 4433, 4862, 4898, 5372, 5797, 6292, 6851, 7502, 8228, 8866, 9559, 9724, 9796, 11297, 11594, 13702, 14773, 15004, 17459, 17732, 19118, 22594, 23188, 26741, 26939, 27404, 29546, 31837, 34918, 38236, 41633, 45188, 48763, 53482, 53878, 59092, 63674, 63767, 69836, 75361, 83266, 97526, 106964, 107756, 124267, 127348, 127534, 150722, 162503, 166532, 192049, 195052, 248534, 255068, 296329, 301444, 325006, 350207, 384098, 457963, 497068, 541229, 592658, 650012, 700414, 768196, 828971, 915926, 1082458, 1185316, 1400828, 1657942, 1831852, 2112539, 2164916, 3315884, 3852277, 4225078, 5037593, 5953519, 7704554, 8450156, 10075186, 11907038, 15409108, 20150372, 23814076, 65488709, 130977418, 261954836]

約数ペア:

[(1, 261954836), (2, 130977418), (4, 65488709), (11, 23814076), (13, 20150372), (17, 15409108), (22, 11907038), (26, 10075186), (31, 8450156), (34, 7704554), (44, 5953519), (52, 5037593), (62, 4225078), (68, 3852277), (79, 3315884), (121, 2164916), (124, 2112539), (143, 1831852), (158, 1657942), (187, 1400828), (221, 1185316), (242, 1082458), (286, 915926), (316, 828971), (341, 768196), (374, 700414), (403, 650012), (442, 592658), (484, 541229), (527, 497068), (572, 457963), (682, 384098), (748, 350207), (806, 325006), (869, 301444), (884, 296329), (1027, 255068), (1054, 248534), (1343, 195052), (1364, 192049), (1573, 166532), (1612, 162503), (1738, 150722), (2054, 127534), (2057, 127348), (2108, 124267), (2431, 107756), (2449, 106964), (2686, 97526), (3146, 83266), (3476, 75361), (3751, 69836), (4108, 63767), (4114, 63674), (4433, 59092), (4862, 53878), (4898, 53482), (5372, 48763), (5797, 45188), (6292, 41633), (6851, 38236), (7502, 34918), (8228, 31837), (8866, 29546), (9559, 27404), (9724, 26939), (9796, 26741), (11297, 23188), (11594, 22594), (13702, 19118), (14773, 17732), (15004, 17459)]