77729440

素因数分解:

$2^5\times 5^1\times {\mathrm{17}}^2\times {\mathrm{41}}^2$

素因数の和:131

約数の個数: 108

約数和(自身を含む): 199947258

約数和(自身を除く): 122217818

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 32, 34, 40, 41, 68, 80, 82, 85, 136, 160, 164, 170, 205, 272, 289, 328, 340, 410, 544, 578, 656, 680, 697, 820, 1156, 1312, 1360, 1394, 1445, 1640, 1681, 2312, 2720, 2788, 2890, 3280, 3362, 3485, 4624, 5576, 5780, 6560, 6724, 6970, 8405, 9248, 11152, 11560, 11849, 13448, 13940, 16810, 22304, 23120, 23698, 26896, 27880, 28577, 33620, 46240, 47396, 53792, 55760, 57154, 59245, 67240, 94792, 111520, 114308, 118490, 134480, 142885, 189584, 228616, 236980, 268960, 285770, 379168, 457232, 473960, 485809, 571540, 914464, 947920, 971618, 1143080, 1895840, 1943236, 2286160, 2429045, 3886472, 4572320, 4858090, 7772944, 9716180, 15545888, 19432360, 38864720, 77729440]

約数ペア:

[(1, 77729440), (2, 38864720), (4, 19432360), (5, 15545888), (8, 9716180), (10, 7772944), (16, 4858090), (17, 4572320), (20, 3886472), (32, 2429045), (34, 2286160), (40, 1943236), (41, 1895840), (68, 1143080), (80, 971618), (82, 947920), (85, 914464), (136, 571540), (160, 485809), (164, 473960), (170, 457232), (205, 379168), (272, 285770), (289, 268960), (328, 236980), (340, 228616), (410, 189584), (544, 142885), (578, 134480), (656, 118490), (680, 114308), (697, 111520), (820, 94792), (1156, 67240), (1312, 59245), (1360, 57154), (1394, 55760), (1445, 53792), (1640, 47396), (1681, 46240), (2312, 33620), (2720, 28577), (2788, 27880), (2890, 26896), (3280, 23698), (3362, 23120), (3485, 22304), (4624, 16810), (5576, 13940), (5780, 13448), (6560, 11849), (6724, 11560), (6970, 11152), (8405, 9248)]