205514140

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{41}}^1\times {\mathrm{1483}}^1$

素因数の和:1559

約数の個数: 72

約数和(自身を含む): 479053008

約数和(自身を除く): 273538868

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 41, 52, 65, 82, 130, 164, 169, 205, 260, 338, 410, 533, 676, 820, 845, 1066, 1483, 1690, 2132, 2665, 2966, 3380, 5330, 5932, 6929, 7415, 10660, 13858, 14830, 19279, 27716, 29660, 34645, 38558, 60803, 69290, 77116, 96395, 121606, 138580, 192790, 243212, 250627, 304015, 385580, 501254, 608030, 790439, 1002508, 1216060, 1253135, 1580878, 2506270, 3161756, 3952195, 5012540, 7904390, 10275707, 15808780, 20551414, 41102828, 51378535, 102757070, 205514140]

約数ペア:

[(1, 205514140), (2, 102757070), (4, 51378535), (5, 41102828), (10, 20551414), (13, 15808780), (20, 10275707), (26, 7904390), (41, 5012540), (52, 3952195), (65, 3161756), (82, 2506270), (130, 1580878), (164, 1253135), (169, 1216060), (205, 1002508), (260, 790439), (338, 608030), (410, 501254), (533, 385580), (676, 304015), (820, 250627), (845, 243212), (1066, 192790), (1483, 138580), (1690, 121606), (2132, 96395), (2665, 77116), (2966, 69290), (3380, 60803), (5330, 38558), (5932, 34645), (6929, 29660), (7415, 27716), (10660, 19279), (13858, 14830)]