156720620

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{409}}^1$

素因数の和:472

約数の個数: 144

約数和(自身を含む): 424025280

約数和(自身を除く): 267304660

約数列:

[1, 2, 4, 5, 7, 10, 14, 17, 20, 23, 28, 34, 35, 46, 49, 68, 70, 85, 92, 98, 115, 119, 140, 161, 170, 196, 230, 238, 245, 322, 340, 391, 409, 460, 476, 490, 595, 644, 782, 805, 818, 833, 980, 1127, 1190, 1564, 1610, 1636, 1666, 1955, 2045, 2254, 2380, 2737, 2863, 3220, 3332, 3910, 4090, 4165, 4508, 5474, 5635, 5726, 6953, 7820, 8180, 8330, 9407, 10948, 11270, 11452, 13685, 13906, 14315, 16660, 18814, 19159, 20041, 22540, 27370, 27812, 28630, 34765, 37628, 38318, 40082, 47035, 48671, 54740, 57260, 65849, 69530, 76636, 80164, 94070, 95795, 97342, 100205, 131698, 139060, 159919, 188140, 191590, 194684, 200410, 243355, 263396, 319838, 329245, 340697, 383180, 400820, 460943, 486710, 639676, 658490, 681394, 799595, 921886, 973420, 1119433, 1316980, 1362788, 1599190, 1703485, 1843772, 2238866, 2304715, 3198380, 3406970, 4477732, 4609430, 5597165, 6813940, 7836031, 9218860, 11194330, 15672062, 22388660, 31344124, 39180155, 78360310, 156720620]

約数ペア:

[(1, 156720620), (2, 78360310), (4, 39180155), (5, 31344124), (7, 22388660), (10, 15672062), (14, 11194330), (17, 9218860), (20, 7836031), (23, 6813940), (28, 5597165), (34, 4609430), (35, 4477732), (46, 3406970), (49, 3198380), (68, 2304715), (70, 2238866), (85, 1843772), (92, 1703485), (98, 1599190), (115, 1362788), (119, 1316980), (140, 1119433), (161, 973420), (170, 921886), (196, 799595), (230, 681394), (238, 658490), (245, 639676), (322, 486710), (340, 460943), (391, 400820), (409, 383180), (460, 340697), (476, 329245), (490, 319838), (595, 263396), (644, 243355), (782, 200410), (805, 194684), (818, 191590), (833, 188140), (980, 159919), (1127, 139060), (1190, 131698), (1564, 100205), (1610, 97342), (1636, 95795), (1666, 94070), (1955, 80164), (2045, 76636), (2254, 69530), (2380, 65849), (2737, 57260), (2863, 54740), (3220, 48671), (3332, 47035), (3910, 40082), (4090, 38318), (4165, 37628), (4508, 34765), (5474, 28630), (5635, 27812), (5726, 27370), (6953, 22540), (7820, 20041), (8180, 19159), (8330, 18814), (9407, 16660), (10948, 14315), (11270, 13906), (11452, 13685)]