81196920

素因数分解:

$2^3\times 3^2\times 5^1\times 7^2\times {\mathrm{4603}}^1$

素因数の和:4634

約数の個数: 144

約数和(自身を含む): 307040760

約数和(自身を除く): 225843840

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 18, 20, 21, 24, 28, 30, 35, 36, 40, 42, 45, 49, 56, 60, 63, 70, 72, 84, 90, 98, 105, 120, 126, 140, 147, 168, 180, 196, 210, 245, 252, 280, 294, 315, 360, 392, 420, 441, 490, 504, 588, 630, 735, 840, 882, 980, 1176, 1260, 1470, 1764, 1960, 2205, 2520, 2940, 3528, 4410, 4603, 5880, 8820, 9206, 13809, 17640, 18412, 23015, 27618, 32221, 36824, 41427, 46030, 55236, 64442, 69045, 82854, 92060, 96663, 110472, 128884, 138090, 161105, 165708, 184120, 193326, 207135, 225547, 257768, 276180, 289989, 322210, 331416, 386652, 414270, 451094, 483315, 552360, 579978, 644420, 676641, 773304, 828540, 902188, 966630, 1127735, 1159956, 1288840, 1353282, 1449945, 1657080, 1804376, 1933260, 2029923, 2255470, 2319912, 2706564, 2899890, 3383205, 3866520, 4059846, 4510940, 5413128, 5799780, 6766410, 8119692, 9021880, 10149615, 11599560, 13532820, 16239384, 20299230, 27065640, 40598460, 81196920]

約数ペア:

[(1, 81196920), (2, 40598460), (3, 27065640), (4, 20299230), (5, 16239384), (6, 13532820), (7, 11599560), (8, 10149615), (9, 9021880), (10, 8119692), (12, 6766410), (14, 5799780), (15, 5413128), (18, 4510940), (20, 4059846), (21, 3866520), (24, 3383205), (28, 2899890), (30, 2706564), (35, 2319912), (36, 2255470), (40, 2029923), (42, 1933260), (45, 1804376), (49, 1657080), (56, 1449945), (60, 1353282), (63, 1288840), (70, 1159956), (72, 1127735), (84, 966630), (90, 902188), (98, 828540), (105, 773304), (120, 676641), (126, 644420), (140, 579978), (147, 552360), (168, 483315), (180, 451094), (196, 414270), (210, 386652), (245, 331416), (252, 322210), (280, 289989), (294, 276180), (315, 257768), (360, 225547), (392, 207135), (420, 193326), (441, 184120), (490, 165708), (504, 161105), (588, 138090), (630, 128884), (735, 110472), (840, 96663), (882, 92060), (980, 82854), (1176, 69045), (1260, 64442), (1470, 55236), (1764, 46030), (1960, 41427), (2205, 36824), (2520, 32221), (2940, 27618), (3528, 23015), (4410, 18412), (4603, 17640), (5880, 13809), (8820, 9206)]