18509157080

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{431}}^1\times {\mathrm{46679}}^1$

素因数の和:47144

約数の個数: 64

約数和(自身を含む): 43558041600

約数和(自身を除く): 25048884520

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 92, 115, 184, 230, 431, 460, 862, 920, 1724, 2155, 3448, 4310, 8620, 9913, 17240, 19826, 39652, 46679, 49565, 79304, 93358, 99130, 186716, 198260, 233395, 373432, 396520, 466790, 933580, 1073617, 1867160, 2147234, 4294468, 5368085, 8588936, 10736170, 20118649, 21472340, 40237298, 42944680, 80474596, 100593245, 160949192, 201186490, 402372980, 462728927, 804745960, 925457854, 1850915708, 2313644635, 3701831416, 4627289270, 9254578540, 18509157080]

約数ペア:

[(1, 18509157080), (2, 9254578540), (4, 4627289270), (5, 3701831416), (8, 2313644635), (10, 1850915708), (20, 925457854), (23, 804745960), (40, 462728927), (46, 402372980), (92, 201186490), (115, 160949192), (184, 100593245), (230, 80474596), (431, 42944680), (460, 40237298), (862, 21472340), (920, 20118649), (1724, 10736170), (2155, 8588936), (3448, 5368085), (4310, 4294468), (8620, 2147234), (9913, 1867160), (17240, 1073617), (19826, 933580), (39652, 466790), (46679, 396520), (49565, 373432), (79304, 233395), (93358, 198260), (99130, 186716)]