638729568

素因数分解:

$2^5\times 3^2\times {\mathrm{43}}^1\times {\mathrm{51577}}^1$

素因数の和:51636

約数の個数: 72

約数和(自身を含む): 1858664808

約数和(自身を除く): 1219935240

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 32, 36, 43, 48, 72, 86, 96, 129, 144, 172, 258, 288, 344, 387, 516, 688, 774, 1032, 1376, 1548, 2064, 3096, 4128, 6192, 12384, 51577, 103154, 154731, 206308, 309462, 412616, 464193, 618924, 825232, 928386, 1237848, 1650464, 1856772, 2217811, 2475696, 3713544, 4435622, 4951392, 6653433, 7427088, 8871244, 13306866, 14854176, 17742488, 19960299, 26613732, 35484976, 39920598, 53227464, 70969952, 79841196, 106454928, 159682392, 212909856, 319364784, 638729568]

約数ペア:

[(1, 638729568), (2, 319364784), (3, 212909856), (4, 159682392), (6, 106454928), (8, 79841196), (9, 70969952), (12, 53227464), (16, 39920598), (18, 35484976), (24, 26613732), (32, 19960299), (36, 17742488), (43, 14854176), (48, 13306866), (72, 8871244), (86, 7427088), (96, 6653433), (129, 4951392), (144, 4435622), (172, 3713544), (258, 2475696), (288, 2217811), (344, 1856772), (387, 1650464), (516, 1237848), (688, 928386), (774, 825232), (1032, 618924), (1376, 464193), (1548, 412616), (2064, 309462), (3096, 206308), (4128, 154731), (6192, 103154), (12384, 51577)]