17993780

素因数分解:

$2^2\times 5^1\times 7^3\times {\mathrm{43}}^1\times {\mathrm{61}}^1$

素因数の和:134

約数の個数: 96

約数和(自身を含む): 45830400

約数和(自身を除く): 27836620

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 43, 49, 61, 70, 86, 98, 122, 140, 172, 196, 215, 244, 245, 301, 305, 343, 427, 430, 490, 602, 610, 686, 854, 860, 980, 1204, 1220, 1372, 1505, 1708, 1715, 2107, 2135, 2623, 2989, 3010, 3430, 4214, 4270, 5246, 5978, 6020, 6860, 8428, 8540, 10492, 10535, 11956, 13115, 14749, 14945, 18361, 20923, 21070, 26230, 29498, 29890, 36722, 41846, 42140, 52460, 58996, 59780, 73444, 73745, 83692, 91805, 104615, 128527, 147490, 183610, 209230, 257054, 294980, 367220, 418460, 514108, 642635, 899689, 1285270, 1799378, 2570540, 3598756, 4498445, 8996890, 17993780]

約数ペア:

[(1, 17993780), (2, 8996890), (4, 4498445), (5, 3598756), (7, 2570540), (10, 1799378), (14, 1285270), (20, 899689), (28, 642635), (35, 514108), (43, 418460), (49, 367220), (61, 294980), (70, 257054), (86, 209230), (98, 183610), (122, 147490), (140, 128527), (172, 104615), (196, 91805), (215, 83692), (244, 73745), (245, 73444), (301, 59780), (305, 58996), (343, 52460), (427, 42140), (430, 41846), (490, 36722), (602, 29890), (610, 29498), (686, 26230), (854, 21070), (860, 20923), (980, 18361), (1204, 14945), (1220, 14749), (1372, 13115), (1505, 11956), (1708, 10535), (1715, 10492), (2107, 8540), (2135, 8428), (2623, 6860), (2989, 6020), (3010, 5978), (3430, 5246), (4214, 4270)]