18988080

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{61}}^1\times {\mathrm{1297}}^1$

素因数の和:1374

約数の個数: 80

約数和(自身を含む): 59874144

約数和(自身を除く): 40886064

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 61, 80, 120, 122, 183, 240, 244, 305, 366, 488, 610, 732, 915, 976, 1220, 1297, 1464, 1830, 2440, 2594, 2928, 3660, 3891, 4880, 5188, 6485, 7320, 7782, 10376, 12970, 14640, 15564, 19455, 20752, 25940, 31128, 38910, 51880, 62256, 77820, 79117, 103760, 155640, 158234, 237351, 311280, 316468, 395585, 474702, 632936, 791170, 949404, 1186755, 1265872, 1582340, 1898808, 2373510, 3164680, 3797616, 4747020, 6329360, 9494040, 18988080]

約数ペア:

[(1, 18988080), (2, 9494040), (3, 6329360), (4, 4747020), (5, 3797616), (6, 3164680), (8, 2373510), (10, 1898808), (12, 1582340), (15, 1265872), (16, 1186755), (20, 949404), (24, 791170), (30, 632936), (40, 474702), (48, 395585), (60, 316468), (61, 311280), (80, 237351), (120, 158234), (122, 155640), (183, 103760), (240, 79117), (244, 77820), (305, 62256), (366, 51880), (488, 38910), (610, 31128), (732, 25940), (915, 20752), (976, 19455), (1220, 15564), (1297, 14640), (1464, 12970), (1830, 10376), (2440, 7782), (2594, 7320), (2928, 6485), (3660, 5188), (3891, 4880)]