278628558

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{139}}^1\times {\mathrm{829}}^1$

素因数の和:1017

約数の個数: 64

約数和(自身を含む): 624691200

約数和(自身を除く): 346062642

約数列:

[1, 2, 3, 6, 13, 26, 31, 39, 62, 78, 93, 139, 186, 278, 403, 417, 806, 829, 834, 1209, 1658, 1807, 2418, 2487, 3614, 4309, 4974, 5421, 8618, 10777, 10842, 12927, 21554, 25699, 25854, 32331, 51398, 56017, 64662, 77097, 112034, 115231, 154194, 168051, 230462, 334087, 336102, 345693, 668174, 691386, 1002261, 1498003, 2004522, 2996006, 3572161, 4494009, 7144322, 8988018, 10716483, 21432966, 46438093, 92876186, 139314279, 278628558]

約数ペア:

[(1, 278628558), (2, 139314279), (3, 92876186), (6, 46438093), (13, 21432966), (26, 10716483), (31, 8988018), (39, 7144322), (62, 4494009), (78, 3572161), (93, 2996006), (139, 2004522), (186, 1498003), (278, 1002261), (403, 691386), (417, 668174), (806, 345693), (829, 336102), (834, 334087), (1209, 230462), (1658, 168051), (1807, 154194), (2418, 115231), (2487, 112034), (3614, 77097), (4309, 64662), (4974, 56017), (5421, 51398), (8618, 32331), (10777, 25854), (10842, 25699), (12927, 21554)]