1820006500

素因数分解:

$2^2\times 5^3\times {\mathrm{13}}^1\times {\mathrm{280001}}^1$

素因数の和:280033

約数の個数: 48

約数和(自身を含む): 4280670576

約数和(自身を除く): 2460664076

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 50, 52, 65, 100, 125, 130, 250, 260, 325, 500, 650, 1300, 1625, 3250, 6500, 280001, 560002, 1120004, 1400005, 2800010, 3640013, 5600020, 7000025, 7280026, 14000050, 14560052, 18200065, 28000100, 35000125, 36400130, 70000250, 72800260, 91000325, 140000500, 182000650, 364001300, 455001625, 910003250, 1820006500]

約数ペア:

[(1, 1820006500), (2, 910003250), (4, 455001625), (5, 364001300), (10, 182000650), (13, 140000500), (20, 91000325), (25, 72800260), (26, 70000250), (50, 36400130), (52, 35000125), (65, 28000100), (100, 18200065), (125, 14560052), (130, 14000050), (250, 7280026), (260, 7000025), (325, 5600020), (500, 3640013), (650, 2800010), (1300, 1400005), (1625, 1120004), (3250, 560002), (6500, 280001)]