221096720

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{212593}}^1$

素因数の和:212619

約数の個数: 40

約数和(自身を含む): 553594776

約数和(自身を除く): 332498056

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 212593, 425186, 850372, 1062965, 1700744, 2125930, 2763709, 3401488, 4251860, 5527418, 8503720, 11054836, 13818545, 17007440, 22109672, 27637090, 44219344, 55274180, 110548360, 221096720]

約数ペア:

[(1, 221096720), (2, 110548360), (4, 55274180), (5, 44219344), (8, 27637090), (10, 22109672), (13, 17007440), (16, 13818545), (20, 11054836), (26, 8503720), (40, 5527418), (52, 4251860), (65, 3401488), (80, 2763709), (104, 2125930), (130, 1700744), (208, 1062965), (260, 850372), (520, 425186), (1040, 212593)]