20019064

素因数分解:

$2^3\times {\mathrm{13}}^3\times {\mathrm{17}}^1\times {\mathrm{67}}^1$

素因数の和:129

約数の個数: 64

約数和(自身を含む): 43696800

約数和(自身を除く): 23677736

約数列:

[1, 2, 4, 8, 13, 17, 26, 34, 52, 67, 68, 104, 134, 136, 169, 221, 268, 338, 442, 536, 676, 871, 884, 1139, 1352, 1742, 1768, 2197, 2278, 2873, 3484, 4394, 4556, 5746, 6968, 8788, 9112, 11323, 11492, 14807, 17576, 22646, 22984, 29614, 37349, 45292, 59228, 74698, 90584, 118456, 147199, 149396, 192491, 294398, 298792, 384982, 588796, 769964, 1177592, 1539928, 2502383, 5004766, 10009532, 20019064]

約数ペア:

[(1, 20019064), (2, 10009532), (4, 5004766), (8, 2502383), (13, 1539928), (17, 1177592), (26, 769964), (34, 588796), (52, 384982), (67, 298792), (68, 294398), (104, 192491), (134, 149396), (136, 147199), (169, 118456), (221, 90584), (268, 74698), (338, 59228), (442, 45292), (536, 37349), (676, 29614), (871, 22984), (884, 22646), (1139, 17576), (1352, 14807), (1742, 11492), (1768, 11323), (2197, 9112), (2278, 8788), (2873, 6968), (3484, 5746), (4394, 4556)]