18272940

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{139}}^1\times {\mathrm{313}}^1$

素因数の和:471

約数の個数: 96

約数和(自身を含む): 59082240

約数和(自身を除く): 40809300

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 139, 140, 210, 278, 313, 417, 420, 556, 626, 695, 834, 939, 973, 1252, 1390, 1565, 1668, 1878, 1946, 2085, 2191, 2780, 2919, 3130, 3756, 3892, 4170, 4382, 4695, 4865, 5838, 6260, 6573, 8340, 8764, 9390, 9730, 10955, 11676, 13146, 14595, 18780, 19460, 21910, 26292, 29190, 32865, 43507, 43820, 58380, 65730, 87014, 130521, 131460, 174028, 217535, 261042, 304549, 435070, 522084, 609098, 652605, 870140, 913647, 1218196, 1305210, 1522745, 1827294, 2610420, 3045490, 3654588, 4568235, 6090980, 9136470, 18272940]

約数ペア:

[(1, 18272940), (2, 9136470), (3, 6090980), (4, 4568235), (5, 3654588), (6, 3045490), (7, 2610420), (10, 1827294), (12, 1522745), (14, 1305210), (15, 1218196), (20, 913647), (21, 870140), (28, 652605), (30, 609098), (35, 522084), (42, 435070), (60, 304549), (70, 261042), (84, 217535), (105, 174028), (139, 131460), (140, 130521), (210, 87014), (278, 65730), (313, 58380), (417, 43820), (420, 43507), (556, 32865), (626, 29190), (695, 26292), (834, 21910), (939, 19460), (973, 18780), (1252, 14595), (1390, 13146), (1565, 11676), (1668, 10955), (1878, 9730), (1946, 9390), (2085, 8764), (2191, 8340), (2780, 6573), (2919, 6260), (3130, 5838), (3756, 4865), (3892, 4695), (4170, 4382)]