1556730

素因数分解:

$2^1\times 3^2\times 5^1\times 7^2\times {\mathrm{353}}^1$

素因数の和:380

約数の個数: 72

約数和(自身を含む): 4721652

約数和(自身を除く): 3164922

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 30, 35, 42, 45, 49, 63, 70, 90, 98, 105, 126, 147, 210, 245, 294, 315, 353, 441, 490, 630, 706, 735, 882, 1059, 1470, 1765, 2118, 2205, 2471, 3177, 3530, 4410, 4942, 5295, 6354, 7413, 10590, 12355, 14826, 15885, 17297, 22239, 24710, 31770, 34594, 37065, 44478, 51891, 74130, 86485, 103782, 111195, 155673, 172970, 222390, 259455, 311346, 518910, 778365, 1556730]

約数ペア:

[(1, 1556730), (2, 778365), (3, 518910), (5, 311346), (6, 259455), (7, 222390), (9, 172970), (10, 155673), (14, 111195), (15, 103782), (18, 86485), (21, 74130), (30, 51891), (35, 44478), (42, 37065), (45, 34594), (49, 31770), (63, 24710), (70, 22239), (90, 17297), (98, 15885), (105, 14826), (126, 12355), (147, 10590), (210, 7413), (245, 6354), (294, 5295), (315, 4942), (353, 4410), (441, 3530), (490, 3177), (630, 2471), (706, 2205), (735, 2118), (882, 1765), (1059, 1470)]