720295940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{395767}}^1$

素因数の和:395796

約数の個数: 48

約数和(自身を含む): 1861692672

約数和(自身を除く): 1141396732

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 52, 65, 70, 91, 130, 140, 182, 260, 364, 455, 910, 1820, 395767, 791534, 1583068, 1978835, 2770369, 3957670, 5144971, 5540738, 7915340, 10289942, 11081476, 13851845, 20579884, 25724855, 27703690, 36014797, 51449710, 55407380, 72029594, 102899420, 144059188, 180073985, 360147970, 720295940]

約数ペア:

[(1, 720295940), (2, 360147970), (4, 180073985), (5, 144059188), (7, 102899420), (10, 72029594), (13, 55407380), (14, 51449710), (20, 36014797), (26, 27703690), (28, 25724855), (35, 20579884), (52, 13851845), (65, 11081476), (70, 10289942), (91, 7915340), (130, 5540738), (140, 5144971), (182, 3957670), (260, 2770369), (364, 1978835), (455, 1583068), (910, 791534), (1820, 395767)]