128904895

素因数分解:

$5^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{173}}^1\times {\mathrm{349}}^1$

素因数の和:595

約数の個数: 32

約数和(自身を含む): 181238400

約数和(自身を除く): 52333505

約数列:

[1, 5, 7, 35, 61, 173, 305, 349, 427, 865, 1211, 1745, 2135, 2443, 6055, 10553, 12215, 21289, 52765, 60377, 73871, 106445, 149023, 301885, 369355, 422639, 745115, 2113195, 3682997, 18414985, 25780979, 128904895]

約数ペア:

[(1, 128904895), (5, 25780979), (7, 18414985), (35, 3682997), (61, 2113195), (173, 745115), (305, 422639), (349, 369355), (427, 301885), (865, 149023), (1211, 106445), (1745, 73871), (2135, 60377), (2443, 52765), (6055, 21289), (10553, 12215)]