408457972

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{331}}^1\times {\mathrm{1249}}^1$

素因数の和:1616

約数の個数: 48

約数和(自身を含む): 813400000

約数和(自身を除く): 404942028

約数列:

[1, 2, 4, 13, 19, 26, 38, 52, 76, 247, 331, 494, 662, 988, 1249, 1324, 2498, 4303, 4996, 6289, 8606, 12578, 16237, 17212, 23731, 25156, 32474, 47462, 64948, 81757, 94924, 163514, 308503, 327028, 413419, 617006, 826838, 1234012, 1653676, 5374447, 7854961, 10748894, 15709922, 21497788, 31419844, 102114493, 204228986, 408457972]

約数ペア:

[(1, 408457972), (2, 204228986), (4, 102114493), (13, 31419844), (19, 21497788), (26, 15709922), (38, 10748894), (52, 7854961), (76, 5374447), (247, 1653676), (331, 1234012), (494, 826838), (662, 617006), (988, 413419), (1249, 327028), (1324, 308503), (2498, 163514), (4303, 94924), (4996, 81757), (6289, 64948), (8606, 47462), (12578, 32474), (16237, 25156), (17212, 23731)]