245640120

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{2621}}^1$

素因数の和:2717

約数の個数: 128

約数和(自身を含む): 815546880

約数和(自身を除く): 569906760

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 20, 22, 24, 30, 33, 40, 44, 55, 60, 66, 71, 88, 110, 120, 132, 142, 165, 213, 220, 264, 284, 330, 355, 426, 440, 568, 660, 710, 781, 852, 1065, 1320, 1420, 1562, 1704, 2130, 2343, 2621, 2840, 3124, 3905, 4260, 4686, 5242, 6248, 7810, 7863, 8520, 9372, 10484, 11715, 13105, 15620, 15726, 18744, 20968, 23430, 26210, 28831, 31240, 31452, 39315, 46860, 52420, 57662, 62904, 78630, 86493, 93720, 104840, 115324, 144155, 157260, 172986, 186091, 230648, 288310, 314520, 345972, 372182, 432465, 558273, 576620, 691944, 744364, 864930, 930455, 1116546, 1153240, 1488728, 1729860, 1860910, 2047001, 2233092, 2791365, 3459720, 3721820, 4094002, 4466184, 5582730, 6141003, 7443640, 8188004, 10235005, 11165460, 12282006, 16376008, 20470010, 22330920, 24564012, 30705015, 40940020, 49128024, 61410030, 81880040, 122820060, 245640120]

約数ペア:

[(1, 245640120), (2, 122820060), (3, 81880040), (4, 61410030), (5, 49128024), (6, 40940020), (8, 30705015), (10, 24564012), (11, 22330920), (12, 20470010), (15, 16376008), (20, 12282006), (22, 11165460), (24, 10235005), (30, 8188004), (33, 7443640), (40, 6141003), (44, 5582730), (55, 4466184), (60, 4094002), (66, 3721820), (71, 3459720), (88, 2791365), (110, 2233092), (120, 2047001), (132, 1860910), (142, 1729860), (165, 1488728), (213, 1153240), (220, 1116546), (264, 930455), (284, 864930), (330, 744364), (355, 691944), (426, 576620), (440, 558273), (568, 432465), (660, 372182), (710, 345972), (781, 314520), (852, 288310), (1065, 230648), (1320, 186091), (1420, 172986), (1562, 157260), (1704, 144155), (2130, 115324), (2343, 104840), (2621, 93720), (2840, 86493), (3124, 78630), (3905, 62904), (4260, 57662), (4686, 52420), (5242, 46860), (6248, 39315), (7810, 31452), (7863, 31240), (8520, 28831), (9372, 26210), (10484, 23430), (11715, 20968), (13105, 18744), (15620, 15726)]