18204840

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{829}}^1$

素因数の和:907

約数の個数: 96

約数和(自身を含む): 60208200

約数和(自身を除く): 42003360

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 45, 60, 61, 72, 90, 120, 122, 180, 183, 244, 305, 360, 366, 488, 549, 610, 732, 829, 915, 1098, 1220, 1464, 1658, 1830, 2196, 2440, 2487, 2745, 3316, 3660, 4145, 4392, 4974, 5490, 6632, 7320, 7461, 8290, 9948, 10980, 12435, 14922, 16580, 19896, 21960, 24870, 29844, 33160, 37305, 49740, 50569, 59688, 74610, 99480, 101138, 149220, 151707, 202276, 252845, 298440, 303414, 404552, 455121, 505690, 606828, 758535, 910242, 1011380, 1213656, 1517070, 1820484, 2022760, 2275605, 3034140, 3640968, 4551210, 6068280, 9102420, 18204840]

約数ペア:

[(1, 18204840), (2, 9102420), (3, 6068280), (4, 4551210), (5, 3640968), (6, 3034140), (8, 2275605), (9, 2022760), (10, 1820484), (12, 1517070), (15, 1213656), (18, 1011380), (20, 910242), (24, 758535), (30, 606828), (36, 505690), (40, 455121), (45, 404552), (60, 303414), (61, 298440), (72, 252845), (90, 202276), (120, 151707), (122, 149220), (180, 101138), (183, 99480), (244, 74610), (305, 59688), (360, 50569), (366, 49740), (488, 37305), (549, 33160), (610, 29844), (732, 24870), (829, 21960), (915, 19896), (1098, 16580), (1220, 14922), (1464, 12435), (1658, 10980), (1830, 9948), (2196, 8290), (2440, 7461), (2487, 7320), (2745, 6632), (3316, 5490), (3660, 4974), (4145, 4392)]