20179952

素因数分解:

$2^4\times {\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{439}}^1$

素因数の和:490

約数の個数: 60

約数和(自身を含む): 44930160

約数和(自身を除く): 24750208

約数列:

[1, 2, 4, 8, 13, 16, 17, 26, 34, 52, 68, 104, 136, 169, 208, 221, 272, 338, 439, 442, 676, 878, 884, 1352, 1756, 1768, 2704, 2873, 3512, 3536, 5707, 5746, 7024, 7463, 11414, 11492, 14926, 22828, 22984, 29852, 45656, 45968, 59704, 74191, 91312, 97019, 119408, 148382, 194038, 296764, 388076, 593528, 776152, 1187056, 1261247, 1552304, 2522494, 5044988, 10089976, 20179952]

約数ペア:

[(1, 20179952), (2, 10089976), (4, 5044988), (8, 2522494), (13, 1552304), (16, 1261247), (17, 1187056), (26, 776152), (34, 593528), (52, 388076), (68, 296764), (104, 194038), (136, 148382), (169, 119408), (208, 97019), (221, 91312), (272, 74191), (338, 59704), (439, 45968), (442, 45656), (676, 29852), (878, 22984), (884, 22828), (1352, 14926), (1756, 11492), (1768, 11414), (2704, 7463), (2873, 7024), (3512, 5746), (3536, 5707)]