420293825

素因数分解:

$5^2\times 7^2\times {\mathrm{43}}^1\times {\mathrm{79}}^1\times {\mathrm{101}}^1$

素因数の和:247

約数の個数: 72

約数和(自身を含む): 634423680

約数和(自身を除く): 214129855

約数列:

[1, 5, 7, 25, 35, 43, 49, 79, 101, 175, 215, 245, 301, 395, 505, 553, 707, 1075, 1225, 1505, 1975, 2107, 2525, 2765, 3397, 3535, 3871, 4343, 4949, 7525, 7979, 10535, 13825, 16985, 17675, 19355, 21715, 23779, 24745, 30401, 39895, 52675, 55853, 84925, 96775, 108575, 118895, 123725, 152005, 166453, 199475, 212807, 279265, 343097, 390971, 594475, 760025, 832265, 1064035, 1396325, 1715485, 1954855, 2401679, 4161325, 5320175, 8577425, 9774275, 12008395, 16811753, 60041975, 84058765, 420293825]

約数ペア:

[(1, 420293825), (5, 84058765), (7, 60041975), (25, 16811753), (35, 12008395), (43, 9774275), (49, 8577425), (79, 5320175), (101, 4161325), (175, 2401679), (215, 1954855), (245, 1715485), (301, 1396325), (395, 1064035), (505, 832265), (553, 760025), (707, 594475), (1075, 390971), (1225, 343097), (1505, 279265), (1975, 212807), (2107, 199475), (2525, 166453), (2765, 152005), (3397, 123725), (3535, 118895), (3871, 108575), (4343, 96775), (4949, 84925), (7525, 55853), (7979, 52675), (10535, 39895), (13825, 30401), (16985, 24745), (17675, 23779), (19355, 21715)]