31220140

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{269}}^1\times {\mathrm{829}}^1$

素因数の和:1114

約数の個数: 48

約数和(自身を含む): 75297600

約数和(自身を除く): 44077460

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 269, 538, 829, 1076, 1345, 1658, 1883, 2690, 3316, 3766, 4145, 5380, 5803, 7532, 8290, 9415, 11606, 16580, 18830, 23212, 29015, 37660, 58030, 116060, 223001, 446002, 892004, 1115005, 1561007, 2230010, 3122014, 4460020, 6244028, 7805035, 15610070, 31220140]

約数ペア:

[(1, 31220140), (2, 15610070), (4, 7805035), (5, 6244028), (7, 4460020), (10, 3122014), (14, 2230010), (20, 1561007), (28, 1115005), (35, 892004), (70, 446002), (140, 223001), (269, 116060), (538, 58030), (829, 37660), (1076, 29015), (1345, 23212), (1658, 18830), (1883, 16580), (2690, 11606), (3316, 9415), (3766, 8290), (4145, 7532), (5380, 5803)]