18241720

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{41}}^1\times {\mathrm{227}}^1$

素因数の和:293

約数の個数: 96

約数和(自身を含む): 49124880

約数和(自身を除く): 30883160

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 41, 49, 56, 70, 82, 98, 140, 164, 196, 205, 227, 245, 280, 287, 328, 392, 410, 454, 490, 574, 820, 908, 980, 1135, 1148, 1435, 1589, 1640, 1816, 1960, 2009, 2270, 2296, 2870, 3178, 4018, 4540, 5740, 6356, 7945, 8036, 9080, 9307, 10045, 11123, 11480, 12712, 15890, 16072, 18614, 20090, 22246, 31780, 37228, 40180, 44492, 46535, 55615, 63560, 65149, 74456, 80360, 88984, 93070, 111230, 130298, 186140, 222460, 260596, 325745, 372280, 444920, 456043, 521192, 651490, 912086, 1302980, 1824172, 2280215, 2605960, 3648344, 4560430, 9120860, 18241720]

約数ペア:

[(1, 18241720), (2, 9120860), (4, 4560430), (5, 3648344), (7, 2605960), (8, 2280215), (10, 1824172), (14, 1302980), (20, 912086), (28, 651490), (35, 521192), (40, 456043), (41, 444920), (49, 372280), (56, 325745), (70, 260596), (82, 222460), (98, 186140), (140, 130298), (164, 111230), (196, 93070), (205, 88984), (227, 80360), (245, 74456), (280, 65149), (287, 63560), (328, 55615), (392, 46535), (410, 44492), (454, 40180), (490, 37228), (574, 31780), (820, 22246), (908, 20090), (980, 18614), (1135, 16072), (1148, 15890), (1435, 12712), (1589, 11480), (1640, 11123), (1816, 10045), (1960, 9307), (2009, 9080), (2270, 8036), (2296, 7945), (2870, 6356), (3178, 5740), (4018, 4540)]