20764480

素因数分解:

$2^6\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{347}}^1$

素因数の和:392

約数の個数: 112

約数和(自身を含む): 57278016

約数和(自身を除く): 36513536

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 17, 20, 22, 32, 34, 40, 44, 55, 64, 68, 80, 85, 88, 110, 136, 160, 170, 176, 187, 220, 272, 320, 340, 347, 352, 374, 440, 544, 680, 694, 704, 748, 880, 935, 1088, 1360, 1388, 1496, 1735, 1760, 1870, 2720, 2776, 2992, 3470, 3520, 3740, 3817, 5440, 5552, 5899, 5984, 6940, 7480, 7634, 11104, 11798, 11968, 13880, 14960, 15268, 19085, 22208, 23596, 27760, 29495, 29920, 30536, 38170, 47192, 55520, 58990, 59840, 61072, 64889, 76340, 94384, 111040, 117980, 122144, 129778, 152680, 188768, 235960, 244288, 259556, 305360, 324445, 377536, 471920, 519112, 610720, 648890, 943840, 1038224, 1221440, 1297780, 1887680, 2076448, 2595560, 4152896, 5191120, 10382240, 20764480]

約数ペア:

[(1, 20764480), (2, 10382240), (4, 5191120), (5, 4152896), (8, 2595560), (10, 2076448), (11, 1887680), (16, 1297780), (17, 1221440), (20, 1038224), (22, 943840), (32, 648890), (34, 610720), (40, 519112), (44, 471920), (55, 377536), (64, 324445), (68, 305360), (80, 259556), (85, 244288), (88, 235960), (110, 188768), (136, 152680), (160, 129778), (170, 122144), (176, 117980), (187, 111040), (220, 94384), (272, 76340), (320, 64889), (340, 61072), (347, 59840), (352, 58990), (374, 55520), (440, 47192), (544, 38170), (680, 30536), (694, 29920), (704, 29495), (748, 27760), (880, 23596), (935, 22208), (1088, 19085), (1360, 15268), (1388, 14960), (1496, 13880), (1735, 11968), (1760, 11798), (1870, 11104), (2720, 7634), (2776, 7480), (2992, 6940), (3470, 5984), (3520, 5899), (3740, 5552), (3817, 5440)]