28440020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{6553}}^1$

素因数の和:6600

約数の個数: 48

約数和(自身を含む): 70468608

約数和(自身を除く): 42028588

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, 6553, 13106, 26212, 32765, 45871, 65530, 91742, 131060, 183484, 203143, 229355, 406286, 458710, 812572, 917420, 1015715, 1422001, 2031430, 2844002, 4062860, 5688004, 7110005, 14220010, 28440020]

約数ペア:

[(1, 28440020), (2, 14220010), (4, 7110005), (5, 5688004), (7, 4062860), (10, 2844002), (14, 2031430), (20, 1422001), (28, 1015715), (31, 917420), (35, 812572), (62, 458710), (70, 406286), (124, 229355), (140, 203143), (155, 183484), (217, 131060), (310, 91742), (434, 65530), (620, 45871), (868, 32765), (1085, 26212), (2170, 13106), (4340, 6553)]