65449540

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{139}}^1\times {\mathrm{1811}}^1$

素因数の和:1972

約数の個数: 48

約数和(自身を含む): 149163840

約数和(自身を除く): 83714300

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 139, 260, 278, 556, 695, 1390, 1807, 1811, 2780, 3614, 3622, 7228, 7244, 9035, 9055, 18070, 18110, 23543, 36140, 36220, 47086, 94172, 117715, 235430, 251729, 470860, 503458, 1006916, 1258645, 2517290, 3272477, 5034580, 6544954, 13089908, 16362385, 32724770, 65449540]

約数ペア:

[(1, 65449540), (2, 32724770), (4, 16362385), (5, 13089908), (10, 6544954), (13, 5034580), (20, 3272477), (26, 2517290), (52, 1258645), (65, 1006916), (130, 503458), (139, 470860), (260, 251729), (278, 235430), (556, 117715), (695, 94172), (1390, 47086), (1807, 36220), (1811, 36140), (2780, 23543), (3614, 18110), (3622, 18070), (7228, 9055), (7244, 9035)]