128438640

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{16217}}^1$

素因数の和:16247

約数の個数: 120

約数和(自身を含む): 470581488

約数和(自身を除く): 342142848

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 11, 12, 15, 16, 18, 20, 22, 24, 30, 33, 36, 40, 44, 45, 48, 55, 60, 66, 72, 80, 88, 90, 99, 110, 120, 132, 144, 165, 176, 180, 198, 220, 240, 264, 330, 360, 396, 440, 495, 528, 660, 720, 792, 880, 990, 1320, 1584, 1980, 2640, 3960, 7920, 16217, 32434, 48651, 64868, 81085, 97302, 129736, 145953, 162170, 178387, 194604, 243255, 259472, 291906, 324340, 356774, 389208, 486510, 535161, 583812, 648680, 713548, 729765, 778416, 891935, 973020, 1070322, 1167624, 1297360, 1427096, 1459530, 1605483, 1783870, 1946040, 2140644, 2335248, 2675805, 2854192, 2919060, 3210966, 3567740, 3892080, 4281288, 5351610, 5838120, 6421932, 7135480, 8027415, 8562576, 10703220, 11676240, 12843864, 14270960, 16054830, 21406440, 25687728, 32109660, 42812880, 64219320, 128438640]

約数ペア:

[(1, 128438640), (2, 64219320), (3, 42812880), (4, 32109660), (5, 25687728), (6, 21406440), (8, 16054830), (9, 14270960), (10, 12843864), (11, 11676240), (12, 10703220), (15, 8562576), (16, 8027415), (18, 7135480), (20, 6421932), (22, 5838120), (24, 5351610), (30, 4281288), (33, 3892080), (36, 3567740), (40, 3210966), (44, 2919060), (45, 2854192), (48, 2675805), (55, 2335248), (60, 2140644), (66, 1946040), (72, 1783870), (80, 1605483), (88, 1459530), (90, 1427096), (99, 1297360), (110, 1167624), (120, 1070322), (132, 973020), (144, 891935), (165, 778416), (176, 729765), (180, 713548), (198, 648680), (220, 583812), (240, 535161), (264, 486510), (330, 389208), (360, 356774), (396, 324340), (440, 291906), (495, 259472), (528, 243255), (660, 194604), (720, 178387), (792, 162170), (880, 145953), (990, 129736), (1320, 97302), (1584, 81085), (1980, 64868), (2640, 48651), (3960, 32434), (7920, 16217)]