388004396

素因数分解:

$2^2\times {\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{1777}}^1$

素因数の和:1843

約数の個数: 72

約数和(自身を含む): 819942480

約数和(自身を除く): 431938084

約数列:

[1, 2, 4, 13, 17, 19, 26, 34, 38, 52, 68, 76, 169, 221, 247, 323, 338, 442, 494, 646, 676, 884, 988, 1292, 1777, 2873, 3211, 3554, 4199, 5746, 6422, 7108, 8398, 11492, 12844, 16796, 23101, 30209, 33763, 46202, 54587, 60418, 67526, 92404, 109174, 120836, 135052, 218348, 300313, 392717, 438919, 573971, 600626, 785434, 877838, 1147942, 1201252, 1570868, 1755676, 2295884, 5105321, 5705947, 7461623, 10210642, 11411894, 14923246, 20421284, 22823788, 29846492, 97001099, 194002198, 388004396]

約数ペア:

[(1, 388004396), (2, 194002198), (4, 97001099), (13, 29846492), (17, 22823788), (19, 20421284), (26, 14923246), (34, 11411894), (38, 10210642), (52, 7461623), (68, 5705947), (76, 5105321), (169, 2295884), (221, 1755676), (247, 1570868), (323, 1201252), (338, 1147942), (442, 877838), (494, 785434), (646, 600626), (676, 573971), (884, 438919), (988, 392717), (1292, 300313), (1777, 218348), (2873, 135052), (3211, 120836), (3554, 109174), (4199, 92404), (5746, 67526), (6422, 60418), (7108, 54587), (8398, 46202), (11492, 33763), (12844, 30209), (16796, 23101)]