199996680

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{128203}}^1$

素因数の和:128230

約数の個数: 64

約数和(自身を含む): 646148160

約数和(自身を除く): 446151480

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 20, 24, 26, 30, 39, 40, 52, 60, 65, 78, 104, 120, 130, 156, 195, 260, 312, 390, 520, 780, 1560, 128203, 256406, 384609, 512812, 641015, 769218, 1025624, 1282030, 1538436, 1666639, 1923045, 2564060, 3076872, 3333278, 3846090, 4999917, 5128120, 6666556, 7692180, 8333195, 9999834, 13333112, 15384360, 16666390, 19999668, 24999585, 33332780, 39999336, 49999170, 66665560, 99998340, 199996680]

約数ペア:

[(1, 199996680), (2, 99998340), (3, 66665560), (4, 49999170), (5, 39999336), (6, 33332780), (8, 24999585), (10, 19999668), (12, 16666390), (13, 15384360), (15, 13333112), (20, 9999834), (24, 8333195), (26, 7692180), (30, 6666556), (39, 5128120), (40, 4999917), (52, 3846090), (60, 3333278), (65, 3076872), (78, 2564060), (104, 1923045), (120, 1666639), (130, 1538436), (156, 1282030), (195, 1025624), (260, 769218), (312, 641015), (390, 512812), (520, 384609), (780, 256406), (1560, 128203)]