20099820

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{353}}^1$

素因数の和:451

約数の個数: 96

約数和(自身を含む): 61612992

約数和(自身を除く): 41513172

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 73, 78, 130, 146, 156, 195, 219, 260, 292, 353, 365, 390, 438, 706, 730, 780, 876, 949, 1059, 1095, 1412, 1460, 1765, 1898, 2118, 2190, 2847, 3530, 3796, 4236, 4380, 4589, 4745, 5295, 5694, 7060, 9178, 9490, 10590, 11388, 13767, 14235, 18356, 18980, 21180, 22945, 25769, 27534, 28470, 45890, 51538, 55068, 56940, 68835, 77307, 91780, 103076, 128845, 137670, 154614, 257690, 275340, 309228, 334997, 386535, 515380, 669994, 773070, 1004991, 1339988, 1546140, 1674985, 2009982, 3349970, 4019964, 5024955, 6699940, 10049910, 20099820]

約数ペア:

[(1, 20099820), (2, 10049910), (3, 6699940), (4, 5024955), (5, 4019964), (6, 3349970), (10, 2009982), (12, 1674985), (13, 1546140), (15, 1339988), (20, 1004991), (26, 773070), (30, 669994), (39, 515380), (52, 386535), (60, 334997), (65, 309228), (73, 275340), (78, 257690), (130, 154614), (146, 137670), (156, 128845), (195, 103076), (219, 91780), (260, 77307), (292, 68835), (353, 56940), (365, 55068), (390, 51538), (438, 45890), (706, 28470), (730, 27534), (780, 25769), (876, 22945), (949, 21180), (1059, 18980), (1095, 18356), (1412, 14235), (1460, 13767), (1765, 11388), (1898, 10590), (2118, 9490), (2190, 9178), (2847, 7060), (3530, 5694), (3796, 5295), (4236, 4745), (4380, 4589)]