20823840

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{14461}}^1$

素因数の和:14482

約数の個数: 72

約数和(自身を含む): 71066268

約数和(自身を除く): 50242428

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 45, 48, 60, 72, 80, 90, 96, 120, 144, 160, 180, 240, 288, 360, 480, 720, 1440, 14461, 28922, 43383, 57844, 72305, 86766, 115688, 130149, 144610, 173532, 216915, 231376, 260298, 289220, 347064, 433830, 462752, 520596, 578440, 650745, 694128, 867660, 1041192, 1156880, 1301490, 1388256, 1735320, 2082384, 2313760, 2602980, 3470640, 4164768, 5205960, 6941280, 10411920, 20823840]

約数ペア:

[(1, 20823840), (2, 10411920), (3, 6941280), (4, 5205960), (5, 4164768), (6, 3470640), (8, 2602980), (9, 2313760), (10, 2082384), (12, 1735320), (15, 1388256), (16, 1301490), (18, 1156880), (20, 1041192), (24, 867660), (30, 694128), (32, 650745), (36, 578440), (40, 520596), (45, 462752), (48, 433830), (60, 347064), (72, 289220), (80, 260298), (90, 231376), (96, 216915), (120, 173532), (144, 144610), (160, 130149), (180, 115688), (240, 86766), (288, 72305), (360, 57844), (480, 43383), (720, 28922), (1440, 14461)]