30781400

素因数分解:

$2^3\times 5^2\times {\mathrm{13}}^1\times {\mathrm{11839}}^1$

素因数の和:11868

約数の個数: 48

約数和(自身を含む): 77078400

約数和(自身を除く): 46297000

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 25, 26, 40, 50, 52, 65, 100, 104, 130, 200, 260, 325, 520, 650, 1300, 2600, 11839, 23678, 47356, 59195, 94712, 118390, 153907, 236780, 295975, 307814, 473560, 591950, 615628, 769535, 1183900, 1231256, 1539070, 2367800, 3078140, 3847675, 6156280, 7695350, 15390700, 30781400]

約数ペア:

[(1, 30781400), (2, 15390700), (4, 7695350), (5, 6156280), (8, 3847675), (10, 3078140), (13, 2367800), (20, 1539070), (25, 1231256), (26, 1183900), (40, 769535), (50, 615628), (52, 591950), (65, 473560), (100, 307814), (104, 295975), (130, 236780), (200, 153907), (260, 118390), (325, 94712), (520, 59195), (650, 47356), (1300, 23678), (2600, 11839)]