61801220

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{251}}^1\times {\mathrm{947}}^1$

素因数の和:1220

約数の個数: 48

約数和(自身を含む): 140470848

約数和(自身を除く): 78669628

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 251, 260, 502, 947, 1004, 1255, 1894, 2510, 3263, 3788, 4735, 5020, 6526, 9470, 12311, 13052, 16315, 18940, 24622, 32630, 49244, 61555, 65260, 123110, 237697, 246220, 475394, 950788, 1188485, 2376970, 3090061, 4753940, 6180122, 12360244, 15450305, 30900610, 61801220]

約数ペア:

[(1, 61801220), (2, 30900610), (4, 15450305), (5, 12360244), (10, 6180122), (13, 4753940), (20, 3090061), (26, 2376970), (52, 1188485), (65, 950788), (130, 475394), (251, 246220), (260, 237697), (502, 123110), (947, 65260), (1004, 61555), (1255, 49244), (1894, 32630), (2510, 24622), (3263, 18940), (3788, 16315), (4735, 13052), (5020, 12311), (6526, 9470)]