68488020

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{233}}^1$

素因数の和:342

約数の個数: 144

約数和(自身を含む): 220776192

約数和(自身を除く): 152288172

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 23, 30, 36, 45, 46, 60, 69, 71, 90, 92, 115, 138, 142, 180, 207, 213, 230, 233, 276, 284, 345, 355, 414, 426, 460, 466, 639, 690, 699, 710, 828, 852, 932, 1035, 1065, 1165, 1278, 1380, 1398, 1420, 1633, 2070, 2097, 2130, 2330, 2556, 2796, 3195, 3266, 3495, 4140, 4194, 4260, 4660, 4899, 5359, 6390, 6532, 6990, 8165, 8388, 9798, 10485, 10718, 12780, 13980, 14697, 16077, 16330, 16543, 19596, 20970, 21436, 24495, 26795, 29394, 32154, 32660, 33086, 41940, 48231, 48990, 49629, 53590, 58788, 64308, 66172, 73485, 80385, 82715, 96462, 97980, 99258, 107180, 146970, 148887, 160770, 165430, 192924, 198516, 241155, 248145, 293940, 297774, 321540, 330860, 380489, 482310, 496290, 595548, 744435, 760978, 964620, 992580, 1141467, 1488870, 1521956, 1902445, 2282934, 2977740, 3424401, 3804890, 4565868, 5707335, 6848802, 7609780, 11414670, 13697604, 17122005, 22829340, 34244010, 68488020]

約数ペア:

[(1, 68488020), (2, 34244010), (3, 22829340), (4, 17122005), (5, 13697604), (6, 11414670), (9, 7609780), (10, 6848802), (12, 5707335), (15, 4565868), (18, 3804890), (20, 3424401), (23, 2977740), (30, 2282934), (36, 1902445), (45, 1521956), (46, 1488870), (60, 1141467), (69, 992580), (71, 964620), (90, 760978), (92, 744435), (115, 595548), (138, 496290), (142, 482310), (180, 380489), (207, 330860), (213, 321540), (230, 297774), (233, 293940), (276, 248145), (284, 241155), (345, 198516), (355, 192924), (414, 165430), (426, 160770), (460, 148887), (466, 146970), (639, 107180), (690, 99258), (699, 97980), (710, 96462), (828, 82715), (852, 80385), (932, 73485), (1035, 66172), (1065, 64308), (1165, 58788), (1278, 53590), (1380, 49629), (1398, 48990), (1420, 48231), (1633, 41940), (2070, 33086), (2097, 32660), (2130, 32154), (2330, 29394), (2556, 26795), (2796, 24495), (3195, 21436), (3266, 20970), (3495, 19596), (4140, 16543), (4194, 16330), (4260, 16077), (4660, 14697), (4899, 13980), (5359, 12780), (6390, 10718), (6532, 10485), (6990, 9798), (8165, 8388)]