171965820

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{220469}}^1$

素因数の和:220494

約数の個数: 48

約数和(自身を含む): 518545440

約数和(自身を除く): 346579620

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 260, 390, 780, 220469, 440938, 661407, 881876, 1102345, 1322814, 2204690, 2645628, 2866097, 3307035, 4409380, 5732194, 6614070, 8598291, 11464388, 13228140, 14330485, 17196582, 28660970, 34393164, 42991455, 57321940, 85982910, 171965820]

約数ペア:

[(1, 171965820), (2, 85982910), (3, 57321940), (4, 42991455), (5, 34393164), (6, 28660970), (10, 17196582), (12, 14330485), (13, 13228140), (15, 11464388), (20, 8598291), (26, 6614070), (30, 5732194), (39, 4409380), (52, 3307035), (60, 2866097), (65, 2645628), (78, 2204690), (130, 1322814), (156, 1102345), (195, 881876), (260, 661407), (390, 440938), (780, 220469)]