30804680

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{89}}^1\times {\mathrm{509}}^1$

素因数の和:626

約数の個数: 64

約数和(自身を含む): 74358000

約数和(自身を除く): 43553320

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 89, 136, 170, 178, 340, 356, 445, 509, 680, 712, 890, 1018, 1513, 1780, 2036, 2545, 3026, 3560, 4072, 5090, 6052, 7565, 8653, 10180, 12104, 15130, 17306, 20360, 30260, 34612, 43265, 45301, 60520, 69224, 86530, 90602, 173060, 181204, 226505, 346120, 362408, 453010, 770117, 906020, 1540234, 1812040, 3080468, 3850585, 6160936, 7701170, 15402340, 30804680]

約数ペア:

[(1, 30804680), (2, 15402340), (4, 7701170), (5, 6160936), (8, 3850585), (10, 3080468), (17, 1812040), (20, 1540234), (34, 906020), (40, 770117), (68, 453010), (85, 362408), (89, 346120), (136, 226505), (170, 181204), (178, 173060), (340, 90602), (356, 86530), (445, 69224), (509, 60520), (680, 45301), (712, 43265), (890, 34612), (1018, 30260), (1513, 20360), (1780, 17306), (2036, 15130), (2545, 12104), (3026, 10180), (3560, 8653), (4072, 7565), (5090, 6052)]