838310980

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{248021}}^1$

素因数の和:248056

約数の個数: 36

約数和(自身を含む): 1906297092

約数和(自身を除く): 1067986112

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 169, 260, 338, 676, 845, 1690, 3380, 248021, 496042, 992084, 1240105, 2480210, 3224273, 4960420, 6448546, 12897092, 16121365, 32242730, 41915549, 64485460, 83831098, 167662196, 209577745, 419155490, 838310980]

約数ペア:

[(1, 838310980), (2, 419155490), (4, 209577745), (5, 167662196), (10, 83831098), (13, 64485460), (20, 41915549), (26, 32242730), (52, 16121365), (65, 12897092), (130, 6448546), (169, 4960420), (260, 3224273), (338, 2480210), (676, 1240105), (845, 992084), (1690, 496042), (3380, 248021)]