291213280

素因数分解:

$2^5\times 5^1\times {\mathrm{197}}^1\times {\mathrm{9239}}^1$

素因数の和:9451

約数の個数: 48

約数和(自身を含む): 691558560

約数和(自身を除く): 400345280

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 197, 394, 788, 985, 1576, 1970, 3152, 3940, 6304, 7880, 9239, 15760, 18478, 31520, 36956, 46195, 73912, 92390, 147824, 184780, 295648, 369560, 739120, 1478240, 1820083, 3640166, 7280332, 9100415, 14560664, 18200830, 29121328, 36401660, 58242656, 72803320, 145606640, 291213280]

約数ペア:

[(1, 291213280), (2, 145606640), (4, 72803320), (5, 58242656), (8, 36401660), (10, 29121328), (16, 18200830), (20, 14560664), (32, 9100415), (40, 7280332), (80, 3640166), (160, 1820083), (197, 1478240), (394, 739120), (788, 369560), (985, 295648), (1576, 184780), (1970, 147824), (3152, 92390), (3940, 73912), (6304, 46195), (7880, 36956), (9239, 31520), (15760, 18478)]