2787460

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{151}}^1$

素因数の和:244

約数の個数: 48

約数和(自身を含む): 6435072

約数和(自身を除く): 3647612

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 71, 130, 142, 151, 260, 284, 302, 355, 604, 710, 755, 923, 1420, 1510, 1846, 1963, 3020, 3692, 3926, 4615, 7852, 9230, 9815, 10721, 18460, 19630, 21442, 39260, 42884, 53605, 107210, 139373, 214420, 278746, 557492, 696865, 1393730, 2787460]

約数ペア:

[(1, 2787460), (2, 1393730), (4, 696865), (5, 557492), (10, 278746), (13, 214420), (20, 139373), (26, 107210), (52, 53605), (65, 42884), (71, 39260), (130, 21442), (142, 19630), (151, 18460), (260, 10721), (284, 9815), (302, 9230), (355, 7852), (604, 4615), (710, 3926), (755, 3692), (923, 3020), (1420, 1963), (1510, 1846)]