1337440

素因数分解:

$2^5\times 5^1\times {\mathrm{13}}^1\times {\mathrm{643}}^1$

素因数の和:671

約数の個数: 48

約数和(自身を含む): 3408048

約数和(自身を除く): 2070608

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 65, 80, 104, 130, 160, 208, 260, 416, 520, 643, 1040, 1286, 2080, 2572, 3215, 5144, 6430, 8359, 10288, 12860, 16718, 20576, 25720, 33436, 41795, 51440, 66872, 83590, 102880, 133744, 167180, 267488, 334360, 668720, 1337440]

約数ペア:

[(1, 1337440), (2, 668720), (4, 334360), (5, 267488), (8, 167180), (10, 133744), (13, 102880), (16, 83590), (20, 66872), (26, 51440), (32, 41795), (40, 33436), (52, 25720), (65, 20576), (80, 16718), (104, 12860), (130, 10288), (160, 8359), (208, 6430), (260, 5144), (416, 3215), (520, 2572), (643, 2080), (1040, 1286)]