2540040

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{61}}^1\times {\mathrm{347}}^1$

素因数の和:422

約数の個数: 64

約数和(自身を含む): 7767360

約数和(自身を除く): 5227320

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 61, 120, 122, 183, 244, 305, 347, 366, 488, 610, 694, 732, 915, 1041, 1220, 1388, 1464, 1735, 1830, 2082, 2440, 2776, 3470, 3660, 4164, 5205, 6940, 7320, 8328, 10410, 13880, 20820, 21167, 41640, 42334, 63501, 84668, 105835, 127002, 169336, 211670, 254004, 317505, 423340, 508008, 635010, 846680, 1270020, 2540040]

約数ペア:

[(1, 2540040), (2, 1270020), (3, 846680), (4, 635010), (5, 508008), (6, 423340), (8, 317505), (10, 254004), (12, 211670), (15, 169336), (20, 127002), (24, 105835), (30, 84668), (40, 63501), (60, 42334), (61, 41640), (120, 21167), (122, 20820), (183, 13880), (244, 10410), (305, 8328), (347, 7320), (366, 6940), (488, 5205), (610, 4164), (694, 3660), (732, 3470), (915, 2776), (1041, 2440), (1220, 2082), (1388, 1830), (1464, 1735)]