291227516

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{1741}}^1$

素因数の和:1866

約数の個数: 48

約数和(自身を含む): 561899520

約数和(自身を除く): 270672004

約数列:

[1, 2, 4, 19, 31, 38, 62, 71, 76, 124, 142, 284, 589, 1178, 1349, 1741, 2201, 2356, 2698, 3482, 4402, 5396, 6964, 8804, 33079, 41819, 53971, 66158, 83638, 107942, 123611, 132316, 167276, 215884, 247222, 494444, 1025449, 2050898, 2348609, 3831941, 4101796, 4697218, 7663882, 9394436, 15327764, 72806879, 145613758, 291227516]

約数ペア:

[(1, 291227516), (2, 145613758), (4, 72806879), (19, 15327764), (31, 9394436), (38, 7663882), (62, 4697218), (71, 4101796), (76, 3831941), (124, 2348609), (142, 2050898), (284, 1025449), (589, 494444), (1178, 247222), (1349, 215884), (1741, 167276), (2201, 132316), (2356, 123611), (2698, 107942), (3482, 83638), (4402, 66158), (5396, 53971), (6964, 41819), (8804, 33079)]