78913000

素因数分解:

$2^3\times 5^3\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{73}}^1$

素因数の和:164

約数の個数: 128

約数和(自身を含む): 199480320

約数和(自身を除く): 120567320

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 25, 40, 46, 47, 50, 73, 92, 94, 100, 115, 125, 146, 184, 188, 200, 230, 235, 250, 292, 365, 376, 460, 470, 500, 575, 584, 730, 920, 940, 1000, 1081, 1150, 1175, 1460, 1679, 1825, 1880, 2162, 2300, 2350, 2875, 2920, 3358, 3431, 3650, 4324, 4600, 4700, 5405, 5750, 5875, 6716, 6862, 7300, 8395, 8648, 9125, 9400, 10810, 11500, 11750, 13432, 13724, 14600, 16790, 17155, 18250, 21620, 23000, 23500, 27025, 27448, 33580, 34310, 36500, 41975, 43240, 47000, 54050, 67160, 68620, 73000, 78913, 83950, 85775, 108100, 135125, 137240, 157826, 167900, 171550, 209875, 216200, 270250, 315652, 335800, 343100, 394565, 419750, 428875, 540500, 631304, 686200, 789130, 839500, 857750, 1081000, 1578260, 1679000, 1715500, 1972825, 3156520, 3431000, 3945650, 7891300, 9864125, 15782600, 19728250, 39456500, 78913000]

約数ペア:

[(1, 78913000), (2, 39456500), (4, 19728250), (5, 15782600), (8, 9864125), (10, 7891300), (20, 3945650), (23, 3431000), (25, 3156520), (40, 1972825), (46, 1715500), (47, 1679000), (50, 1578260), (73, 1081000), (92, 857750), (94, 839500), (100, 789130), (115, 686200), (125, 631304), (146, 540500), (184, 428875), (188, 419750), (200, 394565), (230, 343100), (235, 335800), (250, 315652), (292, 270250), (365, 216200), (376, 209875), (460, 171550), (470, 167900), (500, 157826), (575, 137240), (584, 135125), (730, 108100), (920, 85775), (940, 83950), (1000, 78913), (1081, 73000), (1150, 68620), (1175, 67160), (1460, 54050), (1679, 47000), (1825, 43240), (1880, 41975), (2162, 36500), (2300, 34310), (2350, 33580), (2875, 27448), (2920, 27025), (3358, 23500), (3431, 23000), (3650, 21620), (4324, 18250), (4600, 17155), (4700, 16790), (5405, 14600), (5750, 13724), (5875, 13432), (6716, 11750), (6862, 11500), (7300, 10810), (8395, 9400), (8648, 9125)]