20406777216

素因数分解:

$2^7\times 3^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{244897}}^1$

素因数の和:244952

約数の個数: 128

約数和(自身を含む): 63947765760

約数和(自身を除く): 43540988544

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 24, 28, 31, 32, 42, 48, 56, 62, 64, 84, 93, 96, 112, 124, 128, 168, 186, 192, 217, 224, 248, 336, 372, 384, 434, 448, 496, 651, 672, 744, 868, 896, 992, 1302, 1344, 1488, 1736, 1984, 2604, 2688, 2976, 3472, 3968, 5208, 5952, 6944, 10416, 11904, 13888, 20832, 27776, 41664, 83328, 244897, 489794, 734691, 979588, 1469382, 1714279, 1959176, 2938764, 3428558, 3918352, 5142837, 5877528, 6857116, 7591807, 7836704, 10285674, 11755056, 13714232, 15183614, 15673408, 20571348, 22775421, 23510112, 27428464, 30367228, 31346816, 41142696, 45550842, 47020224, 53142649, 54856928, 60734456, 82285392, 91101684, 94040448, 106285298, 109713856, 121468912, 159427947, 164570784, 182203368, 212570596, 219427712, 242937824, 318855894, 329141568, 364406736, 425141192, 485875648, 637711788, 658283136, 728813472, 850282384, 971751296, 1275423576, 1457626944, 1700564768, 2550847152, 2915253888, 3401129536, 5101694304, 6802259072, 10203388608, 20406777216]

約数ペア:

[(1, 20406777216), (2, 10203388608), (3, 6802259072), (4, 5101694304), (6, 3401129536), (7, 2915253888), (8, 2550847152), (12, 1700564768), (14, 1457626944), (16, 1275423576), (21, 971751296), (24, 850282384), (28, 728813472), (31, 658283136), (32, 637711788), (42, 485875648), (48, 425141192), (56, 364406736), (62, 329141568), (64, 318855894), (84, 242937824), (93, 219427712), (96, 212570596), (112, 182203368), (124, 164570784), (128, 159427947), (168, 121468912), (186, 109713856), (192, 106285298), (217, 94040448), (224, 91101684), (248, 82285392), (336, 60734456), (372, 54856928), (384, 53142649), (434, 47020224), (448, 45550842), (496, 41142696), (651, 31346816), (672, 30367228), (744, 27428464), (868, 23510112), (896, 22775421), (992, 20571348), (1302, 15673408), (1344, 15183614), (1488, 13714232), (1736, 11755056), (1984, 10285674), (2604, 7836704), (2688, 7591807), (2976, 6857116), (3472, 5877528), (3968, 5142837), (5208, 3918352), (5952, 3428558), (6944, 2938764), (10416, 1959176), (11904, 1714279), (13888, 1469382), (20832, 979588), (27776, 734691), (41664, 489794), (83328, 244897)]