64141480

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{173}}^1$

素因数の和:251

約数の個数: 128

約数和(自身を含む): 168376320

約数和(自身を除く): 104234840

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 23, 26, 31, 40, 46, 52, 62, 65, 92, 104, 115, 124, 130, 155, 173, 184, 230, 248, 260, 299, 310, 346, 403, 460, 520, 598, 620, 692, 713, 806, 865, 920, 1196, 1240, 1384, 1426, 1495, 1612, 1730, 2015, 2249, 2392, 2852, 2990, 3224, 3460, 3565, 3979, 4030, 4498, 5363, 5704, 5980, 6920, 7130, 7958, 8060, 8996, 9269, 10726, 11245, 11960, 14260, 15916, 16120, 17992, 18538, 19895, 21452, 22490, 26815, 28520, 31832, 37076, 39790, 42904, 44980, 46345, 51727, 53630, 69719, 74152, 79580, 89960, 92690, 103454, 107260, 123349, 139438, 159160, 185380, 206908, 214520, 246698, 258635, 278876, 348595, 370760, 413816, 493396, 517270, 557752, 616745, 697190, 986792, 1034540, 1233490, 1394380, 1603537, 2069080, 2466980, 2788760, 3207074, 4933960, 6414148, 8017685, 12828296, 16035370, 32070740, 64141480]

約数ペア:

[(1, 64141480), (2, 32070740), (4, 16035370), (5, 12828296), (8, 8017685), (10, 6414148), (13, 4933960), (20, 3207074), (23, 2788760), (26, 2466980), (31, 2069080), (40, 1603537), (46, 1394380), (52, 1233490), (62, 1034540), (65, 986792), (92, 697190), (104, 616745), (115, 557752), (124, 517270), (130, 493396), (155, 413816), (173, 370760), (184, 348595), (230, 278876), (248, 258635), (260, 246698), (299, 214520), (310, 206908), (346, 185380), (403, 159160), (460, 139438), (520, 123349), (598, 107260), (620, 103454), (692, 92690), (713, 89960), (806, 79580), (865, 74152), (920, 69719), (1196, 53630), (1240, 51727), (1384, 46345), (1426, 44980), (1495, 42904), (1612, 39790), (1730, 37076), (2015, 31832), (2249, 28520), (2392, 26815), (2852, 22490), (2990, 21452), (3224, 19895), (3460, 18538), (3565, 17992), (3979, 16120), (4030, 15916), (4498, 14260), (5363, 11960), (5704, 11245), (5980, 10726), (6920, 9269), (7130, 8996), (7958, 8060)]