20284680

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{13003}}^1$

素因数の和:13030

約数の個数: 64

約数和(自身を含む): 65540160

約数和(自身を除く): 45255480

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, 13003, 26006, 39009, 52012, 65015, 78018, 104024, 130030, 156036, 169039, 195045, 260060, 312072, 338078, 390090, 507117, 520120, 676156, 780180, 845195, 1014234, 1352312, 1560360, 1690390, 2028468, 2535585, 3380780, 4056936, 5071170, 6761560, 10142340, 20284680]

約数ペア:

[(1, 20284680), (2, 10142340), (3, 6761560), (4, 5071170), (5, 4056936), (6, 3380780), (8, 2535585), (10, 2028468), (12, 1690390), (13, 1560360), (15, 1352312), (20, 1014234), (24, 845195), (26, 780180), (30, 676156), (39, 520120), (40, 507117), (52, 390090), (60, 338078), (65, 312072), (78, 260060), (104, 195045), (120, 169039), (130, 156036), (156, 130030), (195, 104024), (260, 78018), (312, 65015), (390, 52012), (520, 39009), (780, 26006), (1560, 13003)]