20670572

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{67}}^1\times {\mathrm{349}}^1$

素因数の和:450

約数の個数: 48

約数和(自身を含む): 41983200

約数和(自身を除く): 21312628

約数列:

[1, 2, 4, 13, 17, 26, 34, 52, 67, 68, 134, 221, 268, 349, 442, 698, 871, 884, 1139, 1396, 1742, 2278, 3484, 4537, 4556, 5933, 9074, 11866, 14807, 18148, 23383, 23732, 29614, 46766, 59228, 77129, 93532, 154258, 303979, 308516, 397511, 607958, 795022, 1215916, 1590044, 5167643, 10335286, 20670572]

約数ペア:

[(1, 20670572), (2, 10335286), (4, 5167643), (13, 1590044), (17, 1215916), (26, 795022), (34, 607958), (52, 397511), (67, 308516), (68, 303979), (134, 154258), (221, 93532), (268, 77129), (349, 59228), (442, 46766), (698, 29614), (871, 23732), (884, 23383), (1139, 18148), (1396, 14807), (1742, 11866), (2278, 9074), (3484, 5933), (4537, 4556)]