18954780

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{1279}}^1$

素因数の和:1323

約数の個数: 96

約数和(自身を含む): 60211200

約数和(自身を除く): 41256420

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 19, 20, 26, 30, 38, 39, 52, 57, 60, 65, 76, 78, 95, 114, 130, 156, 190, 195, 228, 247, 260, 285, 380, 390, 494, 570, 741, 780, 988, 1140, 1235, 1279, 1482, 2470, 2558, 2964, 3705, 3837, 4940, 5116, 6395, 7410, 7674, 12790, 14820, 15348, 16627, 19185, 24301, 25580, 33254, 38370, 48602, 49881, 66508, 72903, 76740, 83135, 97204, 99762, 121505, 145806, 166270, 199524, 243010, 249405, 291612, 315913, 332540, 364515, 486020, 498810, 631826, 729030, 947739, 997620, 1263652, 1458060, 1579565, 1895478, 3159130, 3790956, 4738695, 6318260, 9477390, 18954780]

約数ペア:

[(1, 18954780), (2, 9477390), (3, 6318260), (4, 4738695), (5, 3790956), (6, 3159130), (10, 1895478), (12, 1579565), (13, 1458060), (15, 1263652), (19, 997620), (20, 947739), (26, 729030), (30, 631826), (38, 498810), (39, 486020), (52, 364515), (57, 332540), (60, 315913), (65, 291612), (76, 249405), (78, 243010), (95, 199524), (114, 166270), (130, 145806), (156, 121505), (190, 99762), (195, 97204), (228, 83135), (247, 76740), (260, 72903), (285, 66508), (380, 49881), (390, 48602), (494, 38370), (570, 33254), (741, 25580), (780, 24301), (988, 19185), (1140, 16627), (1235, 15348), (1279, 14820), (1482, 12790), (2470, 7674), (2558, 7410), (2964, 6395), (3705, 5116), (3837, 4940)]