78225745

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{149}}^1\times {\mathrm{197}}^1$

素因数の和:405

約数の個数: 32

約数和(自身を含む): 104781600

約数和(自身を除く): 26555855

約数列:

[1, 5, 13, 41, 65, 149, 197, 205, 533, 745, 985, 1937, 2561, 2665, 6109, 8077, 9685, 12805, 29353, 30545, 40385, 79417, 105001, 146765, 381589, 397085, 525005, 1203473, 1907945, 6017365, 15645149, 78225745]

約数ペア:

[(1, 78225745), (5, 15645149), (13, 6017365), (41, 1907945), (65, 1203473), (149, 525005), (197, 397085), (205, 381589), (533, 146765), (745, 105001), (985, 79417), (1937, 40385), (2561, 30545), (2665, 29353), (6109, 12805), (8077, 9685)]