18180540

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{307}}^1$

素因数の和:376

約数の個数: 144

約数和(自身を含む): 64576512

約数和(自身を除く): 46395972

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 47, 60, 63, 70, 84, 90, 94, 105, 126, 140, 141, 180, 188, 210, 235, 252, 282, 307, 315, 329, 420, 423, 470, 564, 614, 630, 658, 705, 846, 921, 940, 987, 1228, 1260, 1316, 1410, 1535, 1645, 1692, 1842, 1974, 2115, 2149, 2763, 2820, 2961, 3070, 3290, 3684, 3948, 4230, 4298, 4605, 4935, 5526, 5922, 6140, 6447, 6580, 8460, 8596, 9210, 9870, 10745, 11052, 11844, 12894, 13815, 14429, 14805, 18420, 19341, 19740, 21490, 25788, 27630, 28858, 29610, 32235, 38682, 42980, 43287, 55260, 57716, 59220, 64470, 72145, 77364, 86574, 96705, 101003, 128940, 129861, 144290, 173148, 193410, 202006, 216435, 259722, 288580, 303009, 386820, 404012, 432870, 505015, 519444, 606018, 649305, 865740, 909027, 1010030, 1212036, 1298610, 1515045, 1818054, 2020060, 2597220, 3030090, 3636108, 4545135, 6060180, 9090270, 18180540]

約数ペア:

[(1, 18180540), (2, 9090270), (3, 6060180), (4, 4545135), (5, 3636108), (6, 3030090), (7, 2597220), (9, 2020060), (10, 1818054), (12, 1515045), (14, 1298610), (15, 1212036), (18, 1010030), (20, 909027), (21, 865740), (28, 649305), (30, 606018), (35, 519444), (36, 505015), (42, 432870), (45, 404012), (47, 386820), (60, 303009), (63, 288580), (70, 259722), (84, 216435), (90, 202006), (94, 193410), (105, 173148), (126, 144290), (140, 129861), (141, 128940), (180, 101003), (188, 96705), (210, 86574), (235, 77364), (252, 72145), (282, 64470), (307, 59220), (315, 57716), (329, 55260), (420, 43287), (423, 42980), (470, 38682), (564, 32235), (614, 29610), (630, 28858), (658, 27630), (705, 25788), (846, 21490), (921, 19740), (940, 19341), (987, 18420), (1228, 14805), (1260, 14429), (1316, 13815), (1410, 12894), (1535, 11844), (1645, 11052), (1692, 10745), (1842, 9870), (1974, 9210), (2115, 8596), (2149, 8460), (2763, 6580), (2820, 6447), (2961, 6140), (3070, 5922), (3290, 5526), (3684, 4935), (3948, 4605), (4230, 4298)]