72780960

素因数分解:

$2^5\times 3^1\times 5^1\times 7^1\times {\mathrm{21661}}^1$

素因数の和:21686

約数の個数: 96

約数和(自身を含む): 262023552

約数和(自身を除く): 189242592

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 32, 35, 40, 42, 48, 56, 60, 70, 80, 84, 96, 105, 112, 120, 140, 160, 168, 210, 224, 240, 280, 336, 420, 480, 560, 672, 840, 1120, 1680, 3360, 21661, 43322, 64983, 86644, 108305, 129966, 151627, 173288, 216610, 259932, 303254, 324915, 346576, 433220, 454881, 519864, 606508, 649830, 693152, 758135, 866440, 909762, 1039728, 1213016, 1299660, 1516270, 1732880, 1819524, 2079456, 2274405, 2426032, 2599320, 3032540, 3465760, 3639048, 4548810, 4852064, 5198640, 6065080, 7278096, 9097620, 10397280, 12130160, 14556192, 18195240, 24260320, 36390480, 72780960]

約数ペア:

[(1, 72780960), (2, 36390480), (3, 24260320), (4, 18195240), (5, 14556192), (6, 12130160), (7, 10397280), (8, 9097620), (10, 7278096), (12, 6065080), (14, 5198640), (15, 4852064), (16, 4548810), (20, 3639048), (21, 3465760), (24, 3032540), (28, 2599320), (30, 2426032), (32, 2274405), (35, 2079456), (40, 1819524), (42, 1732880), (48, 1516270), (56, 1299660), (60, 1213016), (70, 1039728), (80, 909762), (84, 866440), (96, 758135), (105, 693152), (112, 649830), (120, 606508), (140, 519864), (160, 454881), (168, 433220), (210, 346576), (224, 324915), (240, 303254), (280, 259932), (336, 216610), (420, 173288), (480, 151627), (560, 129966), (672, 108305), (840, 86644), (1120, 64983), (1680, 43322), (3360, 21661)]