865932470

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{139}}^1\times {\mathrm{173}}^1\times {\mathrm{277}}^1$

素因数の和:609

約数の個数: 64

約数和(自身を含む): 1706564160

約数和(自身を除く): 840631690

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 139, 173, 277, 278, 346, 554, 695, 865, 1385, 1390, 1730, 1807, 2249, 2770, 3601, 3614, 4498, 7202, 9035, 11245, 18005, 18070, 22490, 24047, 36010, 38503, 47921, 48094, 77006, 95842, 120235, 192515, 239605, 240470, 312611, 385030, 479210, 500539, 622973, 625222, 1001078, 1245946, 1563055, 2502695, 3114865, 3126110, 5005390, 6229730, 6661019, 13322038, 33305095, 66610190, 86593247, 173186494, 432966235, 865932470]

約数ペア:

[(1, 865932470), (2, 432966235), (5, 173186494), (10, 86593247), (13, 66610190), (26, 33305095), (65, 13322038), (130, 6661019), (139, 6229730), (173, 5005390), (277, 3126110), (278, 3114865), (346, 2502695), (554, 1563055), (695, 1245946), (865, 1001078), (1385, 625222), (1390, 622973), (1730, 500539), (1807, 479210), (2249, 385030), (2770, 312611), (3601, 240470), (3614, 239605), (4498, 192515), (7202, 120235), (9035, 95842), (11245, 77006), (18005, 48094), (18070, 47921), (22490, 38503), (24047, 36010)]