20942040

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{107}}^1\times {\mathrm{233}}^1$

素因数の和:361

約数の個数: 128

約数和(自身を含む): 72783360

約数和(自身を除く): 51841320

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 107, 120, 140, 168, 210, 214, 233, 280, 321, 420, 428, 466, 535, 642, 699, 749, 840, 856, 932, 1070, 1165, 1284, 1398, 1498, 1605, 1631, 1864, 2140, 2247, 2330, 2568, 2796, 2996, 3210, 3262, 3495, 3745, 4280, 4494, 4660, 4893, 5592, 5992, 6420, 6524, 6990, 7490, 8155, 8988, 9320, 9786, 11235, 12840, 13048, 13980, 14980, 16310, 17976, 19572, 22470, 24465, 24931, 27960, 29960, 32620, 39144, 44940, 48930, 49862, 65240, 74793, 89880, 97860, 99724, 124655, 149586, 174517, 195720, 199448, 249310, 299172, 349034, 373965, 498620, 523551, 598344, 698068, 747930, 872585, 997240, 1047102, 1396136, 1495860, 1745170, 2094204, 2617755, 2991720, 3490340, 4188408, 5235510, 6980680, 10471020, 20942040]

約数ペア:

[(1, 20942040), (2, 10471020), (3, 6980680), (4, 5235510), (5, 4188408), (6, 3490340), (7, 2991720), (8, 2617755), (10, 2094204), (12, 1745170), (14, 1495860), (15, 1396136), (20, 1047102), (21, 997240), (24, 872585), (28, 747930), (30, 698068), (35, 598344), (40, 523551), (42, 498620), (56, 373965), (60, 349034), (70, 299172), (84, 249310), (105, 199448), (107, 195720), (120, 174517), (140, 149586), (168, 124655), (210, 99724), (214, 97860), (233, 89880), (280, 74793), (321, 65240), (420, 49862), (428, 48930), (466, 44940), (535, 39144), (642, 32620), (699, 29960), (749, 27960), (840, 24931), (856, 24465), (932, 22470), (1070, 19572), (1165, 17976), (1284, 16310), (1398, 14980), (1498, 13980), (1605, 13048), (1631, 12840), (1864, 11235), (2140, 9786), (2247, 9320), (2330, 8988), (2568, 8155), (2796, 7490), (2996, 6990), (3210, 6524), (3262, 6420), (3495, 5992), (3745, 5592), (4280, 4893), (4494, 4660)]