18231720

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{29}}^1\times {\mathrm{31}}^1$

素因数の和:100

約数の個数: 192

約数和(自身を含む): 63244800

約数和(自身を除く): 45013080

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 20, 24, 26, 29, 30, 31, 39, 40, 52, 58, 60, 62, 65, 78, 87, 93, 104, 116, 120, 124, 130, 145, 155, 156, 169, 174, 186, 195, 232, 248, 260, 290, 310, 312, 338, 348, 372, 377, 390, 403, 435, 465, 507, 520, 580, 620, 676, 696, 744, 754, 780, 806, 845, 870, 899, 930, 1014, 1131, 1160, 1209, 1240, 1352, 1508, 1560, 1612, 1690, 1740, 1798, 1860, 1885, 2015, 2028, 2262, 2418, 2535, 2697, 3016, 3224, 3380, 3480, 3596, 3720, 3770, 4030, 4056, 4495, 4524, 4836, 4901, 5070, 5239, 5394, 5655, 6045, 6760, 7192, 7540, 8060, 8990, 9048, 9672, 9802, 10140, 10478, 10788, 11310, 11687, 12090, 13485, 14703, 15080, 15717, 16120, 17980, 19604, 20280, 20956, 21576, 22620, 23374, 24180, 24505, 26195, 26970, 29406, 31434, 35061, 35960, 39208, 41912, 45240, 46748, 48360, 49010, 52390, 53940, 58435, 58812, 62868, 70122, 73515, 78585, 93496, 98020, 104780, 107880, 116870, 117624, 125736, 140244, 147030, 151931, 157170, 175305, 196040, 209560, 233740, 280488, 294060, 303862, 314340, 350610, 455793, 467480, 588120, 607724, 628680, 701220, 759655, 911586, 1215448, 1402440, 1519310, 1823172, 2278965, 3038620, 3646344, 4557930, 6077240, 9115860, 18231720]

約数ペア:

[(1, 18231720), (2, 9115860), (3, 6077240), (4, 4557930), (5, 3646344), (6, 3038620), (8, 2278965), (10, 1823172), (12, 1519310), (13, 1402440), (15, 1215448), (20, 911586), (24, 759655), (26, 701220), (29, 628680), (30, 607724), (31, 588120), (39, 467480), (40, 455793), (52, 350610), (58, 314340), (60, 303862), (62, 294060), (65, 280488), (78, 233740), (87, 209560), (93, 196040), (104, 175305), (116, 157170), (120, 151931), (124, 147030), (130, 140244), (145, 125736), (155, 117624), (156, 116870), (169, 107880), (174, 104780), (186, 98020), (195, 93496), (232, 78585), (248, 73515), (260, 70122), (290, 62868), (310, 58812), (312, 58435), (338, 53940), (348, 52390), (372, 49010), (377, 48360), (390, 46748), (403, 45240), (435, 41912), (465, 39208), (507, 35960), (520, 35061), (580, 31434), (620, 29406), (676, 26970), (696, 26195), (744, 24505), (754, 24180), (780, 23374), (806, 22620), (845, 21576), (870, 20956), (899, 20280), (930, 19604), (1014, 17980), (1131, 16120), (1160, 15717), (1209, 15080), (1240, 14703), (1352, 13485), (1508, 12090), (1560, 11687), (1612, 11310), (1690, 10788), (1740, 10478), (1798, 10140), (1860, 9802), (1885, 9672), (2015, 9048), (2028, 8990), (2262, 8060), (2418, 7540), (2535, 7192), (2697, 6760), (3016, 6045), (3224, 5655), (3380, 5394), (3480, 5239), (3596, 5070), (3720, 4901), (3770, 4836), (4030, 4524), (4056, 4495)]