20145678

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{11699}}^1$

素因数の和:11752

約数の個数: 32

約数和(自身を含む): 47174400

約数和(自身を除く): 27028722

約数列:

[1, 2, 3, 6, 7, 14, 21, 41, 42, 82, 123, 246, 287, 574, 861, 1722, 11699, 23398, 35097, 70194, 81893, 163786, 245679, 479659, 491358, 959318, 1438977, 2877954, 3357613, 6715226, 10072839, 20145678]

約数ペア:

[(1, 20145678), (2, 10072839), (3, 6715226), (6, 3357613), (7, 2877954), (14, 1438977), (21, 959318), (41, 491358), (42, 479659), (82, 245679), (123, 163786), (246, 81893), (287, 70194), (574, 35097), (861, 23398), (1722, 11699)]