20146275

素因数分解:

$3^2\times 5^2\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{229}}^1$

素因数の和:285

約数の個数: 72

約数和(自身を含む): 40042080

約数和(自身を除く): 19895805

約数列:

[1, 3, 5, 9, 15, 17, 23, 25, 45, 51, 69, 75, 85, 115, 153, 207, 225, 229, 255, 345, 391, 425, 575, 687, 765, 1035, 1145, 1173, 1275, 1725, 1955, 2061, 3435, 3519, 3825, 3893, 5175, 5267, 5725, 5865, 9775, 10305, 11679, 15801, 17175, 17595, 19465, 26335, 29325, 35037, 47403, 51525, 58395, 79005, 87975, 89539, 97325, 131675, 175185, 237015, 268617, 291975, 395025, 447695, 805851, 875925, 1185075, 1343085, 2238475, 4029255, 6715425, 20146275]

約数ペア:

[(1, 20146275), (3, 6715425), (5, 4029255), (9, 2238475), (15, 1343085), (17, 1185075), (23, 875925), (25, 805851), (45, 447695), (51, 395025), (69, 291975), (75, 268617), (85, 237015), (115, 175185), (153, 131675), (207, 97325), (225, 89539), (229, 87975), (255, 79005), (345, 58395), (391, 51525), (425, 47403), (575, 35037), (687, 29325), (765, 26335), (1035, 19465), (1145, 17595), (1173, 17175), (1275, 15801), (1725, 11679), (1955, 10305), (2061, 9775), (3435, 5865), (3519, 5725), (3825, 5267), (3893, 5175)]