81750480

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{48661}}^1$

素因数の和:48684

約数の個数: 80

約数和(自身を含む): 289636224

約数和(自身を除く): 207885744

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 35, 40, 42, 48, 56, 60, 70, 80, 84, 105, 112, 120, 140, 168, 210, 240, 280, 336, 420, 560, 840, 1680, 48661, 97322, 145983, 194644, 243305, 291966, 340627, 389288, 486610, 583932, 681254, 729915, 778576, 973220, 1021881, 1167864, 1362508, 1459830, 1703135, 1946440, 2043762, 2335728, 2725016, 2919660, 3406270, 3892880, 4087524, 5109405, 5450032, 5839320, 6812540, 8175048, 10218810, 11678640, 13625080, 16350096, 20437620, 27250160, 40875240, 81750480]

約数ペア:

[(1, 81750480), (2, 40875240), (3, 27250160), (4, 20437620), (5, 16350096), (6, 13625080), (7, 11678640), (8, 10218810), (10, 8175048), (12, 6812540), (14, 5839320), (15, 5450032), (16, 5109405), (20, 4087524), (21, 3892880), (24, 3406270), (28, 2919660), (30, 2725016), (35, 2335728), (40, 2043762), (42, 1946440), (48, 1703135), (56, 1459830), (60, 1362508), (70, 1167864), (80, 1021881), (84, 973220), (105, 778576), (112, 729915), (120, 681254), (140, 583932), (168, 486610), (210, 389288), (240, 340627), (280, 291966), (336, 243305), (420, 194644), (560, 145983), (840, 97322), (1680, 48661)]