778847175

素因数分解:

$3^2\times 5^2\times {\mathrm{43}}^1\times {\mathrm{79}}^1\times {\mathrm{1019}}^1$

素因数の和:1157

約数の個数: 72

約数和(自身を含む): 1446931200

約数和(自身を除く): 668084025

約数列:

[1, 3, 5, 9, 15, 25, 43, 45, 75, 79, 129, 215, 225, 237, 387, 395, 645, 711, 1019, 1075, 1185, 1935, 1975, 3057, 3225, 3397, 3555, 5095, 5925, 9171, 9675, 10191, 15285, 16985, 17775, 25475, 30573, 43817, 45855, 50955, 76425, 80501, 84925, 131451, 152865, 219085, 229275, 241503, 254775, 394353, 402505, 657255, 724509, 764325, 1095425, 1207515, 1971765, 2012525, 3286275, 3461543, 3622545, 6037575, 9858825, 10384629, 17307715, 18112725, 31153887, 51923145, 86538575, 155769435, 259615725, 778847175]

約数ペア:

[(1, 778847175), (3, 259615725), (5, 155769435), (9, 86538575), (15, 51923145), (25, 31153887), (43, 18112725), (45, 17307715), (75, 10384629), (79, 9858825), (129, 6037575), (215, 3622545), (225, 3461543), (237, 3286275), (387, 2012525), (395, 1971765), (645, 1207515), (711, 1095425), (1019, 764325), (1075, 724509), (1185, 657255), (1935, 402505), (1975, 394353), (3057, 254775), (3225, 241503), (3397, 229275), (3555, 219085), (5095, 152865), (5925, 131451), (9171, 84925), (9675, 80501), (10191, 76425), (15285, 50955), (16985, 45855), (17775, 43817), (25475, 30573)]