7225220

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{113}}^1\times {\mathrm{139}}^1$

素因数の和:284

約数の個数: 48

約数和(自身を含む): 16087680

約数和(自身を除く): 8862460

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 92, 113, 115, 139, 226, 230, 278, 452, 460, 556, 565, 695, 1130, 1390, 2260, 2599, 2780, 3197, 5198, 6394, 10396, 12788, 12995, 15707, 15985, 25990, 31414, 31970, 51980, 62828, 63940, 78535, 157070, 314140, 361261, 722522, 1445044, 1806305, 3612610, 7225220]

約数ペア:

[(1, 7225220), (2, 3612610), (4, 1806305), (5, 1445044), (10, 722522), (20, 361261), (23, 314140), (46, 157070), (92, 78535), (113, 63940), (115, 62828), (139, 51980), (226, 31970), (230, 31414), (278, 25990), (452, 15985), (460, 15707), (556, 12995), (565, 12788), (695, 10396), (1130, 6394), (1390, 5198), (2260, 3197), (2599, 2780)]