19281440

素因数分解:

$2^5\times 5^1\times {\mathrm{37}}^1\times {\mathrm{3257}}^1$

素因数の和:3309

約数の個数: 48

約数和(自身を含む): 46797912

約数和(自身を除く): 27516472

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 37, 40, 74, 80, 148, 160, 185, 296, 370, 592, 740, 1184, 1480, 2960, 3257, 5920, 6514, 13028, 16285, 26056, 32570, 52112, 65140, 104224, 120509, 130280, 241018, 260560, 482036, 521120, 602545, 964072, 1205090, 1928144, 2410180, 3856288, 4820360, 9640720, 19281440]

約数ペア:

[(1, 19281440), (2, 9640720), (4, 4820360), (5, 3856288), (8, 2410180), (10, 1928144), (16, 1205090), (20, 964072), (32, 602545), (37, 521120), (40, 482036), (74, 260560), (80, 241018), (148, 130280), (160, 120509), (185, 104224), (296, 65140), (370, 52112), (592, 32570), (740, 26056), (1184, 16285), (1480, 13028), (2960, 6514), (3257, 5920)]