208570895

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{61}}^1\times {\mathrm{1283}}^1$

素因数の和:1403

約数の個数: 32

約数和(自身を含む): 280857024

約数和(自身を除く): 72286129

約数列:

[1, 5, 13, 41, 61, 65, 205, 305, 533, 793, 1283, 2501, 2665, 3965, 6415, 12505, 16679, 32513, 52603, 78263, 83395, 162565, 263015, 391315, 683839, 1017419, 3208783, 3419195, 5087095, 16043915, 41714179, 208570895]

約数ペア:

[(1, 208570895), (5, 41714179), (13, 16043915), (41, 5087095), (61, 3419195), (65, 3208783), (205, 1017419), (305, 683839), (533, 391315), (793, 263015), (1283, 162565), (2501, 83395), (2665, 78263), (3965, 52603), (6415, 32513), (12505, 16679)]