25205129859

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{233}}^1\times {\mathrm{5581}}^1$

素因数の和:5908

約数の個数: 64

約数和(自身を含む): 42132400128

約数和(自身を除く): 16927270269

約数列:

[1, 3, 7, 13, 21, 39, 71, 91, 213, 233, 273, 497, 699, 923, 1491, 1631, 2769, 3029, 4893, 5581, 6461, 9087, 16543, 16743, 19383, 21203, 39067, 49629, 63609, 72553, 115801, 117201, 215059, 217659, 347403, 396251, 507871, 645177, 1188753, 1300373, 1505413, 1523613, 2773757, 3901119, 4516239, 5151263, 8321271, 9102611, 15453789, 16904849, 27307833, 36058841, 50714547, 92326483, 108176523, 118333943, 276979449, 355001829, 646285381, 1200244279, 1938856143, 3600732837, 8401709953, 25205129859]

約数ペア:

[(1, 25205129859), (3, 8401709953), (7, 3600732837), (13, 1938856143), (21, 1200244279), (39, 646285381), (71, 355001829), (91, 276979449), (213, 118333943), (233, 108176523), (273, 92326483), (497, 50714547), (699, 36058841), (923, 27307833), (1491, 16904849), (1631, 15453789), (2769, 9102611), (3029, 8321271), (4893, 5151263), (5581, 4516239), (6461, 3901119), (9087, 2773757), (16543, 1523613), (16743, 1505413), (19383, 1300373), (21203, 1188753), (39067, 645177), (49629, 507871), (63609, 396251), (72553, 347403), (115801, 217659), (117201, 215059)]