18653880

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{419}}^1$

素因数の和:493

約数の個数: 128

約数和(自身を含む): 65318400

約数和(自身を除く): 46664520

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 53, 56, 60, 70, 84, 105, 106, 120, 140, 159, 168, 210, 212, 265, 280, 318, 371, 419, 420, 424, 530, 636, 742, 795, 838, 840, 1060, 1113, 1257, 1272, 1484, 1590, 1676, 1855, 2095, 2120, 2226, 2514, 2933, 2968, 3180, 3352, 3710, 4190, 4452, 5028, 5565, 5866, 6285, 6360, 7420, 8380, 8799, 8904, 10056, 11130, 11732, 12570, 14665, 14840, 16760, 17598, 22207, 22260, 23464, 25140, 29330, 35196, 43995, 44414, 44520, 50280, 58660, 66621, 70392, 87990, 88828, 111035, 117320, 133242, 155449, 175980, 177656, 222070, 266484, 310898, 333105, 351960, 444140, 466347, 532968, 621796, 666210, 777245, 888280, 932694, 1243592, 1332420, 1554490, 1865388, 2331735, 2664840, 3108980, 3730776, 4663470, 6217960, 9326940, 18653880]

約数ペア:

[(1, 18653880), (2, 9326940), (3, 6217960), (4, 4663470), (5, 3730776), (6, 3108980), (7, 2664840), (8, 2331735), (10, 1865388), (12, 1554490), (14, 1332420), (15, 1243592), (20, 932694), (21, 888280), (24, 777245), (28, 666210), (30, 621796), (35, 532968), (40, 466347), (42, 444140), (53, 351960), (56, 333105), (60, 310898), (70, 266484), (84, 222070), (105, 177656), (106, 175980), (120, 155449), (140, 133242), (159, 117320), (168, 111035), (210, 88828), (212, 87990), (265, 70392), (280, 66621), (318, 58660), (371, 50280), (419, 44520), (420, 44414), (424, 43995), (530, 35196), (636, 29330), (742, 25140), (795, 23464), (838, 22260), (840, 22207), (1060, 17598), (1113, 16760), (1257, 14840), (1272, 14665), (1484, 12570), (1590, 11732), (1676, 11130), (1855, 10056), (2095, 8904), (2120, 8799), (2226, 8380), (2514, 7420), (2933, 6360), (2968, 6285), (3180, 5866), (3352, 5565), (3710, 5028), (4190, 4452)]