128746280

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{83}}^1\times {\mathrm{157}}^1$

素因数の和:283

約数の個数: 128

約数和(自身を含む): 334454400

約数和(自身を除く): 205708120

約数列:

[1, 2, 4, 5, 8, 10, 13, 19, 20, 26, 38, 40, 52, 65, 76, 83, 95, 104, 130, 152, 157, 166, 190, 247, 260, 314, 332, 380, 415, 494, 520, 628, 664, 760, 785, 830, 988, 1079, 1235, 1256, 1570, 1577, 1660, 1976, 2041, 2158, 2470, 2983, 3140, 3154, 3320, 4082, 4316, 4940, 5395, 5966, 6280, 6308, 7885, 8164, 8632, 9880, 10205, 10790, 11932, 12616, 13031, 14915, 15770, 16328, 20410, 20501, 21580, 23864, 26062, 29830, 31540, 38779, 40820, 41002, 43160, 52124, 59660, 63080, 65155, 77558, 81640, 82004, 102505, 104248, 119320, 130310, 155116, 164008, 169403, 193895, 205010, 247589, 260620, 310232, 338806, 387790, 410020, 495178, 521240, 677612, 775580, 820040, 847015, 990356, 1237945, 1355224, 1551160, 1694030, 1980712, 2475890, 3218657, 3388060, 4951780, 6437314, 6776120, 9903560, 12874628, 16093285, 25749256, 32186570, 64373140, 128746280]

約数ペア:

[(1, 128746280), (2, 64373140), (4, 32186570), (5, 25749256), (8, 16093285), (10, 12874628), (13, 9903560), (19, 6776120), (20, 6437314), (26, 4951780), (38, 3388060), (40, 3218657), (52, 2475890), (65, 1980712), (76, 1694030), (83, 1551160), (95, 1355224), (104, 1237945), (130, 990356), (152, 847015), (157, 820040), (166, 775580), (190, 677612), (247, 521240), (260, 495178), (314, 410020), (332, 387790), (380, 338806), (415, 310232), (494, 260620), (520, 247589), (628, 205010), (664, 193895), (760, 169403), (785, 164008), (830, 155116), (988, 130310), (1079, 119320), (1235, 104248), (1256, 102505), (1570, 82004), (1577, 81640), (1660, 77558), (1976, 65155), (2041, 63080), (2158, 59660), (2470, 52124), (2983, 43160), (3140, 41002), (3154, 40820), (3320, 38779), (4082, 31540), (4316, 29830), (4940, 26062), (5395, 23864), (5966, 21580), (6280, 20501), (6308, 20410), (7885, 16328), (8164, 15770), (8632, 14915), (9880, 13031), (10205, 12616), (10790, 11932)]