1236465

素因数分解:

$3^4\times 5^1\times {\mathrm{43}}^1\times {\mathrm{71}}^1$

素因数の和:131

約数の個数: 40

約数和(自身を含む): 2299968

約数和(自身を除く): 1063503

約数列:

[1, 3, 5, 9, 15, 27, 43, 45, 71, 81, 129, 135, 213, 215, 355, 387, 405, 639, 645, 1065, 1161, 1917, 1935, 3053, 3195, 3483, 5751, 5805, 9159, 9585, 15265, 17415, 27477, 28755, 45795, 82431, 137385, 247293, 412155, 1236465]

約数ペア:

[(1, 1236465), (3, 412155), (5, 247293), (9, 137385), (15, 82431), (27, 45795), (43, 28755), (45, 27477), (71, 17415), (81, 15265), (129, 9585), (135, 9159), (213, 5805), (215, 5751), (355, 3483), (387, 3195), (405, 3053), (639, 1935), (645, 1917), (1065, 1161)]