18880020

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{34963}}^1$

素因数の和:34981

約数の個数: 48

約数和(自身を含む): 58739520

約数和(自身を除く): 39859500

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 90, 108, 135, 180, 270, 540, 34963, 69926, 104889, 139852, 174815, 209778, 314667, 349630, 419556, 524445, 629334, 699260, 944001, 1048890, 1258668, 1573335, 1888002, 2097780, 3146670, 3776004, 4720005, 6293340, 9440010, 18880020]

約数ペア:

[(1, 18880020), (2, 9440010), (3, 6293340), (4, 4720005), (5, 3776004), (6, 3146670), (9, 2097780), (10, 1888002), (12, 1573335), (15, 1258668), (18, 1048890), (20, 944001), (27, 699260), (30, 629334), (36, 524445), (45, 419556), (54, 349630), (60, 314667), (90, 209778), (108, 174815), (135, 139852), (180, 104889), (270, 69926), (540, 34963)]