18750180

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{47}}^1\times {\mathrm{61}}^1\times {\mathrm{109}}^1$

素因数の和:229

約数の個数: 96

約数和(自身を含む): 54996480

約数和(自身を除く): 36246300

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 47, 60, 61, 94, 109, 122, 141, 183, 188, 218, 235, 244, 282, 305, 327, 366, 436, 470, 545, 564, 610, 654, 705, 732, 915, 940, 1090, 1220, 1308, 1410, 1635, 1830, 2180, 2820, 2867, 3270, 3660, 5123, 5734, 6540, 6649, 8601, 10246, 11468, 13298, 14335, 15369, 17202, 19947, 20492, 25615, 26596, 28670, 30738, 33245, 34404, 39894, 43005, 51230, 57340, 61476, 66490, 76845, 79788, 86010, 99735, 102460, 132980, 153690, 172020, 199470, 307380, 312503, 398940, 625006, 937509, 1250012, 1562515, 1875018, 3125030, 3750036, 4687545, 6250060, 9375090, 18750180]

約数ペア:

[(1, 18750180), (2, 9375090), (3, 6250060), (4, 4687545), (5, 3750036), (6, 3125030), (10, 1875018), (12, 1562515), (15, 1250012), (20, 937509), (30, 625006), (47, 398940), (60, 312503), (61, 307380), (94, 199470), (109, 172020), (122, 153690), (141, 132980), (183, 102460), (188, 99735), (218, 86010), (235, 79788), (244, 76845), (282, 66490), (305, 61476), (327, 57340), (366, 51230), (436, 43005), (470, 39894), (545, 34404), (564, 33245), (610, 30738), (654, 28670), (705, 26596), (732, 25615), (915, 20492), (940, 19947), (1090, 17202), (1220, 15369), (1308, 14335), (1410, 13298), (1635, 11468), (1830, 10246), (2180, 8601), (2820, 6649), (2867, 6540), (3270, 5734), (3660, 5123)]