83720975

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{61}}^1\times {\mathrm{103}}^1$

素因数の和:228

約数の個数: 48

約数和(自身を含む): 117534144

約数和(自身を除く): 33813169

約数列:

[1, 5, 13, 25, 41, 61, 65, 103, 205, 305, 325, 515, 533, 793, 1025, 1339, 1525, 2501, 2575, 2665, 3965, 4223, 6283, 6695, 12505, 13325, 19825, 21115, 31415, 32513, 33475, 54899, 62525, 81679, 105575, 157075, 162565, 257603, 274495, 408395, 812825, 1288015, 1372475, 2041975, 3348839, 6440075, 16744195, 83720975]

約数ペア:

[(1, 83720975), (5, 16744195), (13, 6440075), (25, 3348839), (41, 2041975), (61, 1372475), (65, 1288015), (103, 812825), (205, 408395), (305, 274495), (325, 257603), (515, 162565), (533, 157075), (793, 105575), (1025, 81679), (1339, 62525), (1525, 54899), (2501, 33475), (2575, 32513), (2665, 31415), (3965, 21115), (4223, 19825), (6283, 13325), (6695, 12505)]