19749950

素因数分解:

$2^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{149}}^1\times {\mathrm{241}}^1$

素因数の和:413

約数の個数: 48

約数和(自身を含む): 40510800

約数和(自身を除く): 20760850

約数列:

[1, 2, 5, 10, 11, 22, 25, 50, 55, 110, 149, 241, 275, 298, 482, 550, 745, 1205, 1490, 1639, 2410, 2651, 3278, 3725, 5302, 6025, 7450, 8195, 12050, 13255, 16390, 26510, 35909, 40975, 66275, 71818, 81950, 132550, 179545, 359090, 394999, 789998, 897725, 1795450, 1974995, 3949990, 9874975, 19749950]

約数ペア:

[(1, 19749950), (2, 9874975), (5, 3949990), (10, 1974995), (11, 1795450), (22, 897725), (25, 789998), (50, 394999), (55, 359090), (110, 179545), (149, 132550), (241, 81950), (275, 71818), (298, 66275), (482, 40975), (550, 35909), (745, 26510), (1205, 16390), (1490, 13255), (1639, 12050), (2410, 8195), (2651, 7450), (3278, 6025), (3725, 5302)]