18844280

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{167}}^1$

素因数の和:229

約数の個数: 128

約数和(自身を含む): 54190080

約数和(自身を除く): 35345800

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 20, 26, 28, 31, 35, 40, 52, 56, 62, 65, 70, 91, 104, 124, 130, 140, 155, 167, 182, 217, 248, 260, 280, 310, 334, 364, 403, 434, 455, 520, 620, 668, 728, 806, 835, 868, 910, 1085, 1169, 1240, 1336, 1612, 1670, 1736, 1820, 2015, 2170, 2171, 2338, 2821, 3224, 3340, 3640, 4030, 4340, 4342, 4676, 5177, 5642, 5845, 6680, 8060, 8680, 8684, 9352, 10354, 10855, 11284, 11690, 14105, 15197, 16120, 17368, 20708, 21710, 22568, 23380, 25885, 28210, 30394, 36239, 41416, 43420, 46760, 51770, 56420, 60788, 67301, 72478, 75985, 86840, 103540, 112840, 121576, 134602, 144956, 151970, 181195, 207080, 269204, 289912, 303940, 336505, 362390, 471107, 538408, 607880, 673010, 724780, 942214, 1346020, 1449560, 1884428, 2355535, 2692040, 3768856, 4711070, 9422140, 18844280]

約数ペア:

[(1, 18844280), (2, 9422140), (4, 4711070), (5, 3768856), (7, 2692040), (8, 2355535), (10, 1884428), (13, 1449560), (14, 1346020), (20, 942214), (26, 724780), (28, 673010), (31, 607880), (35, 538408), (40, 471107), (52, 362390), (56, 336505), (62, 303940), (65, 289912), (70, 269204), (91, 207080), (104, 181195), (124, 151970), (130, 144956), (140, 134602), (155, 121576), (167, 112840), (182, 103540), (217, 86840), (248, 75985), (260, 72478), (280, 67301), (310, 60788), (334, 56420), (364, 51770), (403, 46760), (434, 43420), (455, 41416), (520, 36239), (620, 30394), (668, 28210), (728, 25885), (806, 23380), (835, 22568), (868, 21710), (910, 20708), (1085, 17368), (1169, 16120), (1240, 15197), (1336, 14105), (1612, 11690), (1670, 11284), (1736, 10855), (1820, 10354), (2015, 9352), (2170, 8684), (2171, 8680), (2338, 8060), (2821, 6680), (3224, 5845), (3340, 5642), (3640, 5177), (4030, 4676), (4340, 4342)]