18740176

素因数分解:

$2^4\times 7^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{211}}^1$

素因数の和:300

約数の個数: 80

約数和(自身を含む): 45635968

約数和(自身を除く): 26895792

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 52, 56, 61, 91, 104, 112, 122, 182, 208, 211, 244, 364, 422, 427, 488, 728, 793, 844, 854, 976, 1456, 1477, 1586, 1688, 1708, 2743, 2954, 3172, 3376, 3416, 5486, 5551, 5908, 6344, 6832, 10972, 11102, 11816, 12688, 12871, 19201, 21944, 22204, 23632, 25742, 38402, 43888, 44408, 51484, 76804, 88816, 90097, 102968, 153608, 167323, 180194, 205936, 307216, 334646, 360388, 669292, 720776, 1171261, 1338584, 1441552, 2342522, 2677168, 4685044, 9370088, 18740176]

約数ペア:

[(1, 18740176), (2, 9370088), (4, 4685044), (7, 2677168), (8, 2342522), (13, 1441552), (14, 1338584), (16, 1171261), (26, 720776), (28, 669292), (52, 360388), (56, 334646), (61, 307216), (91, 205936), (104, 180194), (112, 167323), (122, 153608), (182, 102968), (208, 90097), (211, 88816), (244, 76804), (364, 51484), (422, 44408), (427, 43888), (488, 38402), (728, 25742), (793, 23632), (844, 22204), (854, 21944), (976, 19201), (1456, 12871), (1477, 12688), (1586, 11816), (1688, 11102), (1708, 10972), (2743, 6832), (2954, 6344), (3172, 5908), (3376, 5551), (3416, 5486)]