19378620

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{199}}^1\times {\mathrm{541}}^1$

素因数の和:755

約数の個数: 72

約数和(自身を含む): 59186400

約数和(自身を除く): 39807780

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 199, 398, 541, 597, 796, 995, 1082, 1194, 1623, 1791, 1990, 2164, 2388, 2705, 2985, 3246, 3582, 3980, 4869, 5410, 5970, 6492, 7164, 8115, 8955, 9738, 10820, 11940, 16230, 17910, 19476, 24345, 32460, 35820, 48690, 97380, 107659, 215318, 322977, 430636, 538295, 645954, 968931, 1076590, 1291908, 1614885, 1937862, 2153180, 3229770, 3875724, 4844655, 6459540, 9689310, 19378620]

約数ペア:

[(1, 19378620), (2, 9689310), (3, 6459540), (4, 4844655), (5, 3875724), (6, 3229770), (9, 2153180), (10, 1937862), (12, 1614885), (15, 1291908), (18, 1076590), (20, 968931), (30, 645954), (36, 538295), (45, 430636), (60, 322977), (90, 215318), (180, 107659), (199, 97380), (398, 48690), (541, 35820), (597, 32460), (796, 24345), (995, 19476), (1082, 17910), (1194, 16230), (1623, 11940), (1791, 10820), (1990, 9738), (2164, 8955), (2388, 8115), (2705, 7164), (2985, 6492), (3246, 5970), (3582, 5410), (3980, 4869)]