18989760

素因数分解:

$2^6\times 3^1\times 5^1\times {\mathrm{131}}^1\times {\mathrm{151}}^1$

素因数の和:302

約数の個数: 112

約数和(自身を含む): 61155072

約数和(自身を除く): 42165312

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 64, 80, 96, 120, 131, 151, 160, 192, 240, 262, 302, 320, 393, 453, 480, 524, 604, 655, 755, 786, 906, 960, 1048, 1208, 1310, 1510, 1572, 1812, 1965, 2096, 2265, 2416, 2620, 3020, 3144, 3624, 3930, 4192, 4530, 4832, 5240, 6040, 6288, 7248, 7860, 8384, 9060, 9664, 10480, 12080, 12576, 14496, 15720, 18120, 19781, 20960, 24160, 25152, 28992, 31440, 36240, 39562, 41920, 48320, 59343, 62880, 72480, 79124, 98905, 118686, 125760, 144960, 158248, 197810, 237372, 296715, 316496, 395620, 474744, 593430, 632992, 791240, 949488, 1186860, 1265984, 1582480, 1898976, 2373720, 3164960, 3797952, 4747440, 6329920, 9494880, 18989760]

約数ペア:

[(1, 18989760), (2, 9494880), (3, 6329920), (4, 4747440), (5, 3797952), (6, 3164960), (8, 2373720), (10, 1898976), (12, 1582480), (15, 1265984), (16, 1186860), (20, 949488), (24, 791240), (30, 632992), (32, 593430), (40, 474744), (48, 395620), (60, 316496), (64, 296715), (80, 237372), (96, 197810), (120, 158248), (131, 144960), (151, 125760), (160, 118686), (192, 98905), (240, 79124), (262, 72480), (302, 62880), (320, 59343), (393, 48320), (453, 41920), (480, 39562), (524, 36240), (604, 31440), (655, 28992), (755, 25152), (786, 24160), (906, 20960), (960, 19781), (1048, 18120), (1208, 15720), (1310, 14496), (1510, 12576), (1572, 12080), (1812, 10480), (1965, 9664), (2096, 9060), (2265, 8384), (2416, 7860), (2620, 7248), (3020, 6288), (3144, 6040), (3624, 5240), (3930, 4832), (4192, 4530)]