1815704020

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{104231}}^1$

素因数の和:104320

約数の個数: 48

約数和(自身を含む): 4167612288

約数和(自身を除く): 2351908268

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 67, 130, 134, 260, 268, 335, 670, 871, 1340, 1742, 3484, 4355, 8710, 17420, 104231, 208462, 416924, 521155, 1042310, 1355003, 2084620, 2710006, 5420012, 6775015, 6983477, 13550030, 13966954, 27100060, 27933908, 34917385, 69834770, 90785201, 139669540, 181570402, 363140804, 453926005, 907852010, 1815704020]

約数ペア:

[(1, 1815704020), (2, 907852010), (4, 453926005), (5, 363140804), (10, 181570402), (13, 139669540), (20, 90785201), (26, 69834770), (52, 34917385), (65, 27933908), (67, 27100060), (130, 13966954), (134, 13550030), (260, 6983477), (268, 6775015), (335, 5420012), (670, 2710006), (871, 2084620), (1340, 1355003), (1742, 1042310), (3484, 521155), (4355, 416924), (8710, 208462), (17420, 104231)]