40807620

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{139}}^1\times {\mathrm{233}}^1$

素因数の和:394

約数の個数: 144

約数和(自身を含む): 143095680

約数和(自身を除く): 102288060

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 105, 126, 139, 140, 180, 210, 233, 252, 278, 315, 417, 420, 466, 556, 630, 695, 699, 834, 932, 973, 1165, 1251, 1260, 1390, 1398, 1631, 1668, 1946, 2085, 2097, 2330, 2502, 2780, 2796, 2919, 3262, 3495, 3892, 4170, 4194, 4660, 4865, 4893, 5004, 5838, 6255, 6524, 6990, 8155, 8340, 8388, 8757, 9730, 9786, 10485, 11676, 12510, 13980, 14595, 14679, 16310, 17514, 19460, 19572, 20970, 24465, 25020, 29190, 29358, 32387, 32620, 35028, 41940, 43785, 48930, 58380, 58716, 64774, 73395, 87570, 97161, 97860, 129548, 146790, 161935, 175140, 194322, 226709, 291483, 293580, 323870, 388644, 453418, 485805, 582966, 647740, 680127, 906836, 971610, 1133545, 1165932, 1360254, 1457415, 1943220, 2040381, 2267090, 2720508, 2914830, 3400635, 4080762, 4534180, 5829660, 6801270, 8161524, 10201905, 13602540, 20403810, 40807620]

約数ペア:

[(1, 40807620), (2, 20403810), (3, 13602540), (4, 10201905), (5, 8161524), (6, 6801270), (7, 5829660), (9, 4534180), (10, 4080762), (12, 3400635), (14, 2914830), (15, 2720508), (18, 2267090), (20, 2040381), (21, 1943220), (28, 1457415), (30, 1360254), (35, 1165932), (36, 1133545), (42, 971610), (45, 906836), (60, 680127), (63, 647740), (70, 582966), (84, 485805), (90, 453418), (105, 388644), (126, 323870), (139, 293580), (140, 291483), (180, 226709), (210, 194322), (233, 175140), (252, 161935), (278, 146790), (315, 129548), (417, 97860), (420, 97161), (466, 87570), (556, 73395), (630, 64774), (695, 58716), (699, 58380), (834, 48930), (932, 43785), (973, 41940), (1165, 35028), (1251, 32620), (1260, 32387), (1390, 29358), (1398, 29190), (1631, 25020), (1668, 24465), (1946, 20970), (2085, 19572), (2097, 19460), (2330, 17514), (2502, 16310), (2780, 14679), (2796, 14595), (2919, 13980), (3262, 12510), (3495, 11676), (3892, 10485), (4170, 9786), (4194, 9730), (4660, 8757), (4865, 8388), (4893, 8340), (5004, 8155), (5838, 6990), (6255, 6524)]