18566820

素因数分解:

$2^2\times 3^4\times 5^1\times {\mathrm{73}}^1\times {\mathrm{157}}^1$

素因数の和:251

約数の個数: 120

約数和(自身を含む): 59418744

約数和(自身を除く): 40851924

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 73, 81, 90, 108, 135, 146, 157, 162, 180, 219, 270, 292, 314, 324, 365, 405, 438, 471, 540, 628, 657, 730, 785, 810, 876, 942, 1095, 1314, 1413, 1460, 1570, 1620, 1884, 1971, 2190, 2355, 2628, 2826, 3140, 3285, 3942, 4239, 4380, 4710, 5652, 5913, 6570, 7065, 7884, 8478, 9420, 9855, 11461, 11826, 12717, 13140, 14130, 16956, 19710, 21195, 22922, 23652, 25434, 28260, 29565, 34383, 39420, 42390, 45844, 50868, 57305, 59130, 63585, 68766, 84780, 103149, 114610, 118260, 127170, 137532, 171915, 206298, 229220, 254340, 309447, 343830, 412596, 515745, 618894, 687660, 928341, 1031490, 1237788, 1547235, 1856682, 2062980, 3094470, 3713364, 4641705, 6188940, 9283410, 18566820]

約数ペア:

[(1, 18566820), (2, 9283410), (3, 6188940), (4, 4641705), (5, 3713364), (6, 3094470), (9, 2062980), (10, 1856682), (12, 1547235), (15, 1237788), (18, 1031490), (20, 928341), (27, 687660), (30, 618894), (36, 515745), (45, 412596), (54, 343830), (60, 309447), (73, 254340), (81, 229220), (90, 206298), (108, 171915), (135, 137532), (146, 127170), (157, 118260), (162, 114610), (180, 103149), (219, 84780), (270, 68766), (292, 63585), (314, 59130), (324, 57305), (365, 50868), (405, 45844), (438, 42390), (471, 39420), (540, 34383), (628, 29565), (657, 28260), (730, 25434), (785, 23652), (810, 22922), (876, 21195), (942, 19710), (1095, 16956), (1314, 14130), (1413, 13140), (1460, 12717), (1570, 11826), (1620, 11461), (1884, 9855), (1971, 9420), (2190, 8478), (2355, 7884), (2628, 7065), (2826, 6570), (3140, 5913), (3285, 5652), (3942, 4710), (4239, 4380)]