6999980

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{19}}^1\times {\mathrm{109}}^1$

素因数の和:163

約数の個数: 72

約数和(自身を含む): 16909200

約数和(自身を除く): 9909220

約数列:

[1, 2, 4, 5, 10, 13, 19, 20, 26, 38, 52, 65, 76, 95, 109, 130, 169, 190, 218, 247, 260, 338, 380, 436, 494, 545, 676, 845, 988, 1090, 1235, 1417, 1690, 2071, 2180, 2470, 2834, 3211, 3380, 4142, 4940, 5668, 6422, 7085, 8284, 10355, 12844, 14170, 16055, 18421, 20710, 26923, 28340, 32110, 36842, 41420, 53846, 64220, 73684, 92105, 107692, 134615, 184210, 269230, 349999, 368420, 538460, 699998, 1399996, 1749995, 3499990, 6999980]

約数ペア:

[(1, 6999980), (2, 3499990), (4, 1749995), (5, 1399996), (10, 699998), (13, 538460), (19, 368420), (20, 349999), (26, 269230), (38, 184210), (52, 134615), (65, 107692), (76, 92105), (95, 73684), (109, 64220), (130, 53846), (169, 41420), (190, 36842), (218, 32110), (247, 28340), (260, 26923), (338, 20710), (380, 18421), (436, 16055), (494, 14170), (545, 12844), (676, 10355), (845, 8284), (988, 7085), (1090, 6422), (1235, 5668), (1417, 4940), (1690, 4142), (2071, 3380), (2180, 3211), (2470, 2834)]