78967580

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{173}}^1\times {\mathrm{787}}^1$

素因数の和:998

約数の個数: 48

約数和(自身を含む): 172761120

約数和(自身を除く): 93793540

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 116, 145, 173, 290, 346, 580, 692, 787, 865, 1574, 1730, 3148, 3460, 3935, 5017, 7870, 10034, 15740, 20068, 22823, 25085, 45646, 50170, 91292, 100340, 114115, 136151, 228230, 272302, 456460, 544604, 680755, 1361510, 2723020, 3948379, 7896758, 15793516, 19741895, 39483790, 78967580]

約数ペア:

[(1, 78967580), (2, 39483790), (4, 19741895), (5, 15793516), (10, 7896758), (20, 3948379), (29, 2723020), (58, 1361510), (116, 680755), (145, 544604), (173, 456460), (290, 272302), (346, 228230), (580, 136151), (692, 114115), (787, 100340), (865, 91292), (1574, 50170), (1730, 45646), (3148, 25085), (3460, 22823), (3935, 20068), (5017, 15740), (7870, 10034)]