208765560

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{107}}^1\times {\mathrm{229}}^1$

素因数の和:421

約数の個数: 128

約数和(自身を含む): 643852800

約数和(自身を除く): 435087240

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 71, 107, 120, 142, 213, 214, 229, 284, 321, 355, 426, 428, 458, 535, 568, 642, 687, 710, 852, 856, 916, 1065, 1070, 1145, 1284, 1374, 1420, 1605, 1704, 1832, 2130, 2140, 2290, 2568, 2748, 2840, 3210, 3435, 4260, 4280, 4580, 5496, 6420, 6870, 7597, 8520, 9160, 12840, 13740, 15194, 16259, 22791, 24503, 27480, 30388, 32518, 37985, 45582, 48777, 49006, 60776, 65036, 73509, 75970, 81295, 91164, 97554, 98012, 113955, 122515, 130072, 147018, 151940, 162590, 182328, 195108, 196024, 227910, 243885, 245030, 294036, 303880, 325180, 367545, 390216, 455820, 487770, 490060, 588072, 650360, 735090, 911640, 975540, 980120, 1470180, 1739713, 1951080, 2940360, 3479426, 5219139, 6958852, 8698565, 10438278, 13917704, 17397130, 20876556, 26095695, 34794260, 41753112, 52191390, 69588520, 104382780, 208765560]

約数ペア:

[(1, 208765560), (2, 104382780), (3, 69588520), (4, 52191390), (5, 41753112), (6, 34794260), (8, 26095695), (10, 20876556), (12, 17397130), (15, 13917704), (20, 10438278), (24, 8698565), (30, 6958852), (40, 5219139), (60, 3479426), (71, 2940360), (107, 1951080), (120, 1739713), (142, 1470180), (213, 980120), (214, 975540), (229, 911640), (284, 735090), (321, 650360), (355, 588072), (426, 490060), (428, 487770), (458, 455820), (535, 390216), (568, 367545), (642, 325180), (687, 303880), (710, 294036), (852, 245030), (856, 243885), (916, 227910), (1065, 196024), (1070, 195108), (1145, 182328), (1284, 162590), (1374, 151940), (1420, 147018), (1605, 130072), (1704, 122515), (1832, 113955), (2130, 98012), (2140, 97554), (2290, 91164), (2568, 81295), (2748, 75970), (2840, 73509), (3210, 65036), (3435, 60776), (4260, 49006), (4280, 48777), (4580, 45582), (5496, 37985), (6420, 32518), (6870, 30388), (7597, 27480), (8520, 24503), (9160, 22791), (12840, 16259), (13740, 15194)]