18642533780

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{109}}^1\times {\mathrm{557}}^1\times {\mathrm{1181}}^1$

素因数の和:1869

約数の個数: 96

約数和(自身を含む): 42660082080

約数和(自身を除く): 24017548300

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 109, 130, 218, 260, 436, 545, 557, 1090, 1114, 1181, 1417, 2180, 2228, 2362, 2785, 2834, 4724, 5570, 5668, 5905, 7085, 7241, 11140, 11810, 14170, 14482, 15353, 23620, 28340, 28964, 30706, 36205, 60713, 61412, 72410, 76765, 121426, 128729, 144820, 153530, 242852, 257458, 303565, 307060, 514916, 607130, 643645, 657817, 789269, 1214260, 1287290, 1315634, 1578538, 1673477, 2574580, 2631268, 3157076, 3289085, 3346954, 3946345, 6578170, 6693908, 7892690, 8367385, 8551621, 13156340, 15785380, 16734770, 17103242, 33469540, 34206484, 42758105, 71702053, 85516210, 143404106, 171032420, 286808212, 358510265, 717020530, 932126689, 1434041060, 1864253378, 3728506756, 4660633445, 9321266890, 18642533780]

約数ペア:

[(1, 18642533780), (2, 9321266890), (4, 4660633445), (5, 3728506756), (10, 1864253378), (13, 1434041060), (20, 932126689), (26, 717020530), (52, 358510265), (65, 286808212), (109, 171032420), (130, 143404106), (218, 85516210), (260, 71702053), (436, 42758105), (545, 34206484), (557, 33469540), (1090, 17103242), (1114, 16734770), (1181, 15785380), (1417, 13156340), (2180, 8551621), (2228, 8367385), (2362, 7892690), (2785, 6693908), (2834, 6578170), (4724, 3946345), (5570, 3346954), (5668, 3289085), (5905, 3157076), (7085, 2631268), (7241, 2574580), (11140, 1673477), (11810, 1578538), (14170, 1315634), (14482, 1287290), (15353, 1214260), (23620, 789269), (28340, 657817), (28964, 643645), (30706, 607130), (36205, 514916), (60713, 307060), (61412, 303565), (72410, 257458), (76765, 242852), (121426, 153530), (128729, 144820)]