28674910

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{89}}^1\times {\mathrm{101}}^1$

素因数の和:237

約数の個数: 64

約数和(自身を含む): 59486400

約数和(自身を除く): 30811490

約数列:

[1, 2, 5, 10, 11, 22, 29, 55, 58, 89, 101, 110, 145, 178, 202, 290, 319, 445, 505, 638, 890, 979, 1010, 1111, 1595, 1958, 2222, 2581, 2929, 3190, 4895, 5162, 5555, 5858, 8989, 9790, 11110, 12905, 14645, 17978, 25810, 28391, 29290, 32219, 44945, 56782, 64438, 89890, 98879, 141955, 161095, 197758, 260681, 283910, 322190, 494395, 521362, 988790, 1303405, 2606810, 2867491, 5734982, 14337455, 28674910]

約数ペア:

[(1, 28674910), (2, 14337455), (5, 5734982), (10, 2867491), (11, 2606810), (22, 1303405), (29, 988790), (55, 521362), (58, 494395), (89, 322190), (101, 283910), (110, 260681), (145, 197758), (178, 161095), (202, 141955), (290, 98879), (319, 89890), (445, 64438), (505, 56782), (638, 44945), (890, 32219), (979, 29290), (1010, 28391), (1111, 25810), (1595, 17978), (1958, 14645), (2222, 12905), (2581, 11110), (2929, 9790), (3190, 8989), (4895, 5858), (5162, 5555)]