261375240

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{5101}}^1$

素因数の和:5183

約数の個数: 128

約数和(自身を含む): 911013120

約数和(自身を除く): 649637880

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 61, 70, 84, 105, 120, 122, 140, 168, 183, 210, 244, 280, 305, 366, 420, 427, 488, 610, 732, 840, 854, 915, 1220, 1281, 1464, 1708, 1830, 2135, 2440, 2562, 3416, 3660, 4270, 5101, 5124, 6405, 7320, 8540, 10202, 10248, 12810, 15303, 17080, 20404, 25505, 25620, 30606, 35707, 40808, 51010, 51240, 61212, 71414, 76515, 102020, 107121, 122424, 142828, 153030, 178535, 204040, 214242, 285656, 306060, 311161, 357070, 428484, 535605, 612120, 622322, 714140, 856968, 933483, 1071210, 1244644, 1428280, 1555805, 1866966, 2142420, 2178127, 2489288, 3111610, 3733932, 4284840, 4356254, 4667415, 6223220, 6534381, 7467864, 8712508, 9334830, 10890635, 12446440, 13068762, 17425016, 18669660, 21781270, 26137524, 32671905, 37339320, 43562540, 52275048, 65343810, 87125080, 130687620, 261375240]

約数ペア:

[(1, 261375240), (2, 130687620), (3, 87125080), (4, 65343810), (5, 52275048), (6, 43562540), (7, 37339320), (8, 32671905), (10, 26137524), (12, 21781270), (14, 18669660), (15, 17425016), (20, 13068762), (21, 12446440), (24, 10890635), (28, 9334830), (30, 8712508), (35, 7467864), (40, 6534381), (42, 6223220), (56, 4667415), (60, 4356254), (61, 4284840), (70, 3733932), (84, 3111610), (105, 2489288), (120, 2178127), (122, 2142420), (140, 1866966), (168, 1555805), (183, 1428280), (210, 1244644), (244, 1071210), (280, 933483), (305, 856968), (366, 714140), (420, 622322), (427, 612120), (488, 535605), (610, 428484), (732, 357070), (840, 311161), (854, 306060), (915, 285656), (1220, 214242), (1281, 204040), (1464, 178535), (1708, 153030), (1830, 142828), (2135, 122424), (2440, 107121), (2562, 102020), (3416, 76515), (3660, 71414), (4270, 61212), (5101, 51240), (5124, 51010), (6405, 40808), (7320, 35707), (8540, 30606), (10202, 25620), (10248, 25505), (12810, 20404), (15303, 17080)]