28188642860

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{6495079}}^1$

素因数の和:6495126

約数の個数: 48

約数和(自身を含む): 69835100160

約数和(自身を除く): 41646457300

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 31, 35, 62, 70, 124, 140, 155, 217, 310, 434, 620, 868, 1085, 2170, 4340, 6495079, 12990158, 25980316, 32475395, 45465553, 64950790, 90931106, 129901580, 181862212, 201347449, 227327765, 402694898, 454655530, 805389796, 909311060, 1006737245, 1409432143, 2013474490, 2818864286, 4026948980, 5637728572, 7047160715, 14094321430, 28188642860]

約数ペア:

[(1, 28188642860), (2, 14094321430), (4, 7047160715), (5, 5637728572), (7, 4026948980), (10, 2818864286), (14, 2013474490), (20, 1409432143), (28, 1006737245), (31, 909311060), (35, 805389796), (62, 454655530), (70, 402694898), (124, 227327765), (140, 201347449), (155, 181862212), (217, 129901580), (310, 90931106), (434, 64950790), (620, 45465553), (868, 32475395), (1085, 25980316), (2170, 12990158), (4340, 6495079)]