539958640

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{199}}^1\times {\mathrm{2609}}^1$

素因数の和:2834

約数の個数: 80

約数和(自身を含む): 1359288000

約数和(自身を除く): 819329360

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 199, 208, 260, 398, 520, 796, 995, 1040, 1592, 1990, 2587, 2609, 3184, 3980, 5174, 5218, 7960, 10348, 10436, 12935, 13045, 15920, 20696, 20872, 25870, 26090, 33917, 41392, 41744, 51740, 52180, 67834, 103480, 104360, 135668, 169585, 206960, 208720, 271336, 339170, 519191, 542672, 678340, 1038382, 1356680, 2076764, 2595955, 2713360, 4153528, 5191910, 6749483, 8307056, 10383820, 13498966, 20767640, 26997932, 33747415, 41535280, 53995864, 67494830, 107991728, 134989660, 269979320, 539958640]

約数ペア:

[(1, 539958640), (2, 269979320), (4, 134989660), (5, 107991728), (8, 67494830), (10, 53995864), (13, 41535280), (16, 33747415), (20, 26997932), (26, 20767640), (40, 13498966), (52, 10383820), (65, 8307056), (80, 6749483), (104, 5191910), (130, 4153528), (199, 2713360), (208, 2595955), (260, 2076764), (398, 1356680), (520, 1038382), (796, 678340), (995, 542672), (1040, 519191), (1592, 339170), (1990, 271336), (2587, 208720), (2609, 206960), (3184, 169585), (3980, 135668), (5174, 104360), (5218, 103480), (7960, 67834), (10348, 52180), (10436, 51740), (12935, 41744), (13045, 41392), (15920, 33917), (20696, 26090), (20872, 25870)]