1974857640

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{109}}^1\times {\mathrm{21569}}^1$

素因数の和:21699

約数の個数: 128

約数和(自身を含む): 6833376000

約数和(自身を除く): 4858518360

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 109, 120, 140, 168, 210, 218, 280, 327, 420, 436, 545, 654, 763, 840, 872, 1090, 1308, 1526, 1635, 2180, 2289, 2616, 3052, 3270, 3815, 4360, 4578, 6104, 6540, 7630, 9156, 11445, 13080, 15260, 18312, 21569, 22890, 30520, 43138, 45780, 64707, 86276, 91560, 107845, 129414, 150983, 172552, 215690, 258828, 301966, 323535, 431380, 452949, 517656, 603932, 647070, 754915, 862760, 905898, 1207864, 1294140, 1509830, 1811796, 2264745, 2351021, 2588280, 3019660, 3623592, 4529490, 4702042, 6039320, 7053063, 9058980, 9404084, 11755105, 14106126, 16457147, 18117960, 18808168, 23510210, 28212252, 32914294, 35265315, 47020420, 49371441, 56424504, 65828588, 70530630, 82285735, 94040840, 98742882, 131657176, 141061260, 164571470, 197485764, 246857205, 282122520, 329142940, 394971528, 493714410, 658285880, 987428820, 1974857640]

約数ペア:

[(1, 1974857640), (2, 987428820), (3, 658285880), (4, 493714410), (5, 394971528), (6, 329142940), (7, 282122520), (8, 246857205), (10, 197485764), (12, 164571470), (14, 141061260), (15, 131657176), (20, 98742882), (21, 94040840), (24, 82285735), (28, 70530630), (30, 65828588), (35, 56424504), (40, 49371441), (42, 47020420), (56, 35265315), (60, 32914294), (70, 28212252), (84, 23510210), (105, 18808168), (109, 18117960), (120, 16457147), (140, 14106126), (168, 11755105), (210, 9404084), (218, 9058980), (280, 7053063), (327, 6039320), (420, 4702042), (436, 4529490), (545, 3623592), (654, 3019660), (763, 2588280), (840, 2351021), (872, 2264745), (1090, 1811796), (1308, 1509830), (1526, 1294140), (1635, 1207864), (2180, 905898), (2289, 862760), (2616, 754915), (3052, 647070), (3270, 603932), (3815, 517656), (4360, 452949), (4578, 431380), (6104, 323535), (6540, 301966), (7630, 258828), (9156, 215690), (11445, 172552), (13080, 150983), (15260, 129414), (18312, 107845), (21569, 91560), (22890, 86276), (30520, 64707), (43138, 45780)]