128681520

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{79}}^1\times {\mathrm{617}}^1$

素因数の和:723

約数の個数: 160

約数和(自身を含む): 441400320

約数和(自身を除く): 312718800

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 16, 20, 22, 24, 30, 33, 40, 44, 48, 55, 60, 66, 79, 80, 88, 110, 120, 132, 158, 165, 176, 220, 237, 240, 264, 316, 330, 395, 440, 474, 528, 617, 632, 660, 790, 869, 880, 948, 1185, 1234, 1264, 1320, 1580, 1738, 1851, 1896, 2370, 2468, 2607, 2640, 3085, 3160, 3476, 3702, 3792, 4345, 4740, 4936, 5214, 6170, 6320, 6787, 6952, 7404, 8690, 9255, 9480, 9872, 10428, 12340, 13035, 13574, 13904, 14808, 17380, 18510, 18960, 20361, 20856, 24680, 26070, 27148, 29616, 33935, 34760, 37020, 40722, 41712, 48743, 49360, 52140, 54296, 67870, 69520, 74040, 81444, 97486, 101805, 104280, 108592, 135740, 146229, 148080, 162888, 194972, 203610, 208560, 243715, 271480, 292458, 325776, 389944, 407220, 487430, 536173, 542960, 584916, 731145, 779888, 814440, 974860, 1072346, 1169832, 1462290, 1608519, 1628880, 1949720, 2144692, 2339664, 2680865, 2924580, 3217038, 3899440, 4289384, 5361730, 5849160, 6434076, 8042595, 8578768, 10723460, 11698320, 12868152, 16085190, 21446920, 25736304, 32170380, 42893840, 64340760, 128681520]

約数ペア:

[(1, 128681520), (2, 64340760), (3, 42893840), (4, 32170380), (5, 25736304), (6, 21446920), (8, 16085190), (10, 12868152), (11, 11698320), (12, 10723460), (15, 8578768), (16, 8042595), (20, 6434076), (22, 5849160), (24, 5361730), (30, 4289384), (33, 3899440), (40, 3217038), (44, 2924580), (48, 2680865), (55, 2339664), (60, 2144692), (66, 1949720), (79, 1628880), (80, 1608519), (88, 1462290), (110, 1169832), (120, 1072346), (132, 974860), (158, 814440), (165, 779888), (176, 731145), (220, 584916), (237, 542960), (240, 536173), (264, 487430), (316, 407220), (330, 389944), (395, 325776), (440, 292458), (474, 271480), (528, 243715), (617, 208560), (632, 203610), (660, 194972), (790, 162888), (869, 148080), (880, 146229), (948, 135740), (1185, 108592), (1234, 104280), (1264, 101805), (1320, 97486), (1580, 81444), (1738, 74040), (1851, 69520), (1896, 67870), (2370, 54296), (2468, 52140), (2607, 49360), (2640, 48743), (3085, 41712), (3160, 40722), (3476, 37020), (3702, 34760), (3792, 33935), (4345, 29616), (4740, 27148), (4936, 26070), (5214, 24680), (6170, 20856), (6320, 20361), (6787, 18960), (6952, 18510), (7404, 17380), (8690, 14808), (9255, 13904), (9480, 13574), (9872, 13035), (10428, 12340)]