80042620

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{18443}}^1$

素因数の和:18490

約数の個数: 48

約数和(自身を含む): 198309888

約数和(自身を除く): 118267268

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, 18443, 36886, 73772, 92215, 129101, 184430, 258202, 368860, 516404, 571733, 645505, 1143466, 1291010, 2286932, 2582020, 2858665, 4002131, 5717330, 8004262, 11434660, 16008524, 20010655, 40021310, 80042620]

約数ペア:

[(1, 80042620), (2, 40021310), (4, 20010655), (5, 16008524), (7, 11434660), (10, 8004262), (14, 5717330), (20, 4002131), (28, 2858665), (31, 2582020), (35, 2286932), (62, 1291010), (70, 1143466), (124, 645505), (140, 571733), (155, 516404), (217, 368860), (310, 258202), (434, 184430), (620, 129101), (868, 92215), (1085, 73772), (2170, 36886), (4340, 18443)]