217804980

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{191057}}^1$

素因数の和:191088

約数の個数: 48

約数和(自身を含む): 641954880

約数和(自身を除く): 424149900

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 19, 20, 30, 38, 57, 60, 76, 95, 114, 190, 228, 285, 380, 570, 1140, 191057, 382114, 573171, 764228, 955285, 1146342, 1910570, 2292684, 2865855, 3630083, 3821140, 5731710, 7260166, 10890249, 11463420, 14520332, 18150415, 21780498, 36300830, 43560996, 54451245, 72601660, 108902490, 217804980]

約数ペア:

[(1, 217804980), (2, 108902490), (3, 72601660), (4, 54451245), (5, 43560996), (6, 36300830), (10, 21780498), (12, 18150415), (15, 14520332), (19, 11463420), (20, 10890249), (30, 7260166), (38, 5731710), (57, 3821140), (60, 3630083), (76, 2865855), (95, 2292684), (114, 1910570), (190, 1146342), (228, 955285), (285, 764228), (380, 573171), (570, 382114), (1140, 191057)]