28255570

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{449}}^1$

素因数の和:523

約数の個数: 64

約数和(自身を含む): 62208000

約数和(自身を除く): 33952430

約数列:

[1, 2, 5, 7, 10, 14, 29, 31, 35, 58, 62, 70, 145, 155, 203, 217, 290, 310, 406, 434, 449, 898, 899, 1015, 1085, 1798, 2030, 2170, 2245, 3143, 4490, 4495, 6286, 6293, 8990, 12586, 13021, 13919, 15715, 26042, 27838, 31430, 31465, 62930, 65105, 69595, 91147, 97433, 130210, 139190, 182294, 194866, 403651, 455735, 487165, 807302, 911470, 974330, 2018255, 2825557, 4036510, 5651114, 14127785, 28255570]

約数ペア:

[(1, 28255570), (2, 14127785), (5, 5651114), (7, 4036510), (10, 2825557), (14, 2018255), (29, 974330), (31, 911470), (35, 807302), (58, 487165), (62, 455735), (70, 403651), (145, 194866), (155, 182294), (203, 139190), (217, 130210), (290, 97433), (310, 91147), (406, 69595), (434, 65105), (449, 62930), (898, 31465), (899, 31430), (1015, 27838), (1085, 26042), (1798, 15715), (2030, 13919), (2170, 13021), (2245, 12586), (3143, 8990), (4490, 6293), (4495, 6286)]