18747040

素因数分解:

$2^5\times 5^1\times {\mathrm{13}}^1\times {\mathrm{9013}}^1$

素因数の和:9041

約数の個数: 48

約数和(自身を含む): 47702088

約数和(自身を除く): 28955048

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 65, 80, 104, 130, 160, 208, 260, 416, 520, 1040, 2080, 9013, 18026, 36052, 45065, 72104, 90130, 117169, 144208, 180260, 234338, 288416, 360520, 468676, 585845, 721040, 937352, 1171690, 1442080, 1874704, 2343380, 3749408, 4686760, 9373520, 18747040]

約数ペア:

[(1, 18747040), (2, 9373520), (4, 4686760), (5, 3749408), (8, 2343380), (10, 1874704), (13, 1442080), (16, 1171690), (20, 937352), (26, 721040), (32, 585845), (40, 468676), (52, 360520), (65, 288416), (80, 234338), (104, 180260), (130, 144208), (160, 117169), (208, 90130), (260, 72104), (416, 45065), (520, 36052), (1040, 18026), (2080, 9013)]