78696540

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{13}}^3\times {\mathrm{199}}^1$

素因数の和:253

約数の個数: 144

約数和(自身を含む): 259896000

約数和(自身を除く): 181199460

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 20, 26, 30, 36, 39, 45, 52, 60, 65, 78, 90, 117, 130, 156, 169, 180, 195, 199, 234, 260, 338, 390, 398, 468, 507, 585, 597, 676, 780, 796, 845, 995, 1014, 1170, 1194, 1521, 1690, 1791, 1990, 2028, 2197, 2340, 2388, 2535, 2587, 2985, 3042, 3380, 3582, 3980, 4394, 5070, 5174, 5970, 6084, 6591, 7164, 7605, 7761, 8788, 8955, 10140, 10348, 10985, 11940, 12935, 13182, 15210, 15522, 17910, 19773, 21970, 23283, 25870, 26364, 30420, 31044, 32955, 33631, 35820, 38805, 39546, 43940, 46566, 51740, 65910, 67262, 77610, 79092, 93132, 98865, 100893, 116415, 131820, 134524, 155220, 168155, 197730, 201786, 232830, 302679, 336310, 395460, 403572, 437203, 465660, 504465, 605358, 672620, 874406, 1008930, 1210716, 1311609, 1513395, 1748812, 2017860, 2186015, 2623218, 3026790, 3934827, 4372030, 5246436, 6053580, 6558045, 7869654, 8744060, 13116090, 15739308, 19674135, 26232180, 39348270, 78696540]

約数ペア:

[(1, 78696540), (2, 39348270), (3, 26232180), (4, 19674135), (5, 15739308), (6, 13116090), (9, 8744060), (10, 7869654), (12, 6558045), (13, 6053580), (15, 5246436), (18, 4372030), (20, 3934827), (26, 3026790), (30, 2623218), (36, 2186015), (39, 2017860), (45, 1748812), (52, 1513395), (60, 1311609), (65, 1210716), (78, 1008930), (90, 874406), (117, 672620), (130, 605358), (156, 504465), (169, 465660), (180, 437203), (195, 403572), (199, 395460), (234, 336310), (260, 302679), (338, 232830), (390, 201786), (398, 197730), (468, 168155), (507, 155220), (585, 134524), (597, 131820), (676, 116415), (780, 100893), (796, 98865), (845, 93132), (995, 79092), (1014, 77610), (1170, 67262), (1194, 65910), (1521, 51740), (1690, 46566), (1791, 43940), (1990, 39546), (2028, 38805), (2197, 35820), (2340, 33631), (2388, 32955), (2535, 31044), (2587, 30420), (2985, 26364), (3042, 25870), (3380, 23283), (3582, 21970), (3980, 19773), (4394, 17910), (5070, 15522), (5174, 15210), (5970, 13182), (6084, 12935), (6591, 11940), (7164, 10985), (7605, 10348), (7761, 10140), (8788, 8955)]