20164557492

素因数分解:

$2^2\times 3^2\times {\mathrm{71}}^1\times {\mathrm{97}}^1\times {\mathrm{81331}}^1$

素因数の和:81509

約数の個数: 72

約数和(自身を含む): 52222951872

約数和(自身を除く): 32058394380

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 71, 97, 142, 194, 213, 284, 291, 388, 426, 582, 639, 852, 873, 1164, 1278, 1746, 2556, 3492, 6887, 13774, 20661, 27548, 41322, 61983, 81331, 82644, 123966, 162662, 243993, 247932, 325324, 487986, 731979, 975972, 1463958, 2927916, 5774501, 7889107, 11549002, 15778214, 17323503, 23098004, 23667321, 31556428, 34647006, 47334642, 51970509, 69294012, 71001963, 94669284, 103941018, 142003926, 207882036, 284007852, 560126597, 1120253194, 1680379791, 2240506388, 3360759582, 5041139373, 6721519164, 10082278746, 20164557492]

約数ペア:

[(1, 20164557492), (2, 10082278746), (3, 6721519164), (4, 5041139373), (6, 3360759582), (9, 2240506388), (12, 1680379791), (18, 1120253194), (36, 560126597), (71, 284007852), (97, 207882036), (142, 142003926), (194, 103941018), (213, 94669284), (284, 71001963), (291, 69294012), (388, 51970509), (426, 47334642), (582, 34647006), (639, 31556428), (852, 23667321), (873, 23098004), (1164, 17323503), (1278, 15778214), (1746, 11549002), (2556, 7889107), (3492, 5774501), (6887, 2927916), (13774, 1463958), (20661, 975972), (27548, 731979), (41322, 487986), (61983, 325324), (81331, 247932), (82644, 243993), (123966, 162662)]