128423520

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{101}}^1\times {\mathrm{883}}^1$

素因数の和:1005

約数の個数: 144

約数和(自身を含む): 443085552

約数和(自身を除く): 314662032

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 45, 48, 60, 72, 80, 90, 96, 101, 120, 144, 160, 180, 202, 240, 288, 303, 360, 404, 480, 505, 606, 720, 808, 883, 909, 1010, 1212, 1440, 1515, 1616, 1766, 1818, 2020, 2424, 2649, 3030, 3232, 3532, 3636, 4040, 4415, 4545, 4848, 5298, 6060, 7064, 7272, 7947, 8080, 8830, 9090, 9696, 10596, 12120, 13245, 14128, 14544, 15894, 16160, 17660, 18180, 21192, 24240, 26490, 28256, 29088, 31788, 35320, 36360, 39735, 42384, 48480, 52980, 63576, 70640, 72720, 79470, 84768, 89183, 105960, 127152, 141280, 145440, 158940, 178366, 211920, 254304, 267549, 317880, 356732, 423840, 445915, 535098, 635760, 713464, 802647, 891830, 1070196, 1271520, 1337745, 1426928, 1605294, 1783660, 2140392, 2675490, 2853856, 3210588, 3567320, 4013235, 4280784, 5350980, 6421176, 7134640, 8026470, 8561568, 10701960, 12842352, 14269280, 16052940, 21403920, 25684704, 32105880, 42807840, 64211760, 128423520]

約数ペア:

[(1, 128423520), (2, 64211760), (3, 42807840), (4, 32105880), (5, 25684704), (6, 21403920), (8, 16052940), (9, 14269280), (10, 12842352), (12, 10701960), (15, 8561568), (16, 8026470), (18, 7134640), (20, 6421176), (24, 5350980), (30, 4280784), (32, 4013235), (36, 3567320), (40, 3210588), (45, 2853856), (48, 2675490), (60, 2140392), (72, 1783660), (80, 1605294), (90, 1426928), (96, 1337745), (101, 1271520), (120, 1070196), (144, 891830), (160, 802647), (180, 713464), (202, 635760), (240, 535098), (288, 445915), (303, 423840), (360, 356732), (404, 317880), (480, 267549), (505, 254304), (606, 211920), (720, 178366), (808, 158940), (883, 145440), (909, 141280), (1010, 127152), (1212, 105960), (1440, 89183), (1515, 84768), (1616, 79470), (1766, 72720), (1818, 70640), (2020, 63576), (2424, 52980), (2649, 48480), (3030, 42384), (3232, 39735), (3532, 36360), (3636, 35320), (4040, 31788), (4415, 29088), (4545, 28256), (4848, 26490), (5298, 24240), (6060, 21192), (7064, 18180), (7272, 17660), (7947, 16160), (8080, 15894), (8830, 14544), (9090, 14128), (9696, 13245), (10596, 12120)]