15816780

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{12553}}^1$

素因数の和:12575

約数の個数: 72

約数和(自身を含む): 54835872

約数和(自身を除く): 39019092

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 105, 126, 140, 180, 210, 252, 315, 420, 630, 1260, 12553, 25106, 37659, 50212, 62765, 75318, 87871, 112977, 125530, 150636, 175742, 188295, 225954, 251060, 263613, 351484, 376590, 439355, 451908, 527226, 564885, 753180, 790839, 878710, 1054452, 1129770, 1318065, 1581678, 1757420, 2259540, 2636130, 3163356, 3954195, 5272260, 7908390, 15816780]

約数ペア:

[(1, 15816780), (2, 7908390), (3, 5272260), (4, 3954195), (5, 3163356), (6, 2636130), (7, 2259540), (9, 1757420), (10, 1581678), (12, 1318065), (14, 1129770), (15, 1054452), (18, 878710), (20, 790839), (21, 753180), (28, 564885), (30, 527226), (35, 451908), (36, 439355), (42, 376590), (45, 351484), (60, 263613), (63, 251060), (70, 225954), (84, 188295), (90, 175742), (105, 150636), (126, 125530), (140, 112977), (180, 87871), (210, 75318), (252, 62765), (315, 50212), (420, 37659), (630, 25106), (1260, 12553)]