19208980

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{1153}}^1$

素因数の和:1193

約数の個数: 72

約数和(自身を含む): 49728168

約数和(自身を除く): 30519188

約数列:

[1, 2, 4, 5, 7, 10, 14, 17, 20, 28, 34, 35, 49, 68, 70, 85, 98, 119, 140, 170, 196, 238, 245, 340, 476, 490, 595, 833, 980, 1153, 1190, 1666, 2306, 2380, 3332, 4165, 4612, 5765, 8071, 8330, 11530, 16142, 16660, 19601, 23060, 32284, 39202, 40355, 56497, 78404, 80710, 98005, 112994, 137207, 161420, 196010, 225988, 274414, 282485, 392020, 548828, 564970, 686035, 960449, 1129940, 1372070, 1920898, 2744140, 3841796, 4802245, 9604490, 19208980]

約数ペア:

[(1, 19208980), (2, 9604490), (4, 4802245), (5, 3841796), (7, 2744140), (10, 1920898), (14, 1372070), (17, 1129940), (20, 960449), (28, 686035), (34, 564970), (35, 548828), (49, 392020), (68, 282485), (70, 274414), (85, 225988), (98, 196010), (119, 161420), (140, 137207), (170, 112994), (196, 98005), (238, 80710), (245, 78404), (340, 56497), (476, 40355), (490, 39202), (595, 32284), (833, 23060), (980, 19601), (1153, 16660), (1190, 16142), (1666, 11530), (2306, 8330), (2380, 8071), (3332, 5765), (4165, 4612)]