30900720

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{199}}^1\times {\mathrm{647}}^1$

素因数の和:862

約数の個数: 80

約数和(自身を含む): 96422400

約数和(自身を除く): 65521680

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 199, 240, 398, 597, 647, 796, 995, 1194, 1294, 1592, 1941, 1990, 2388, 2588, 2985, 3184, 3235, 3882, 3980, 4776, 5176, 5970, 6470, 7764, 7960, 9552, 9705, 10352, 11940, 12940, 15528, 15920, 19410, 23880, 25880, 31056, 38820, 47760, 51760, 77640, 128753, 155280, 257506, 386259, 515012, 643765, 772518, 1030024, 1287530, 1545036, 1931295, 2060048, 2575060, 3090072, 3862590, 5150120, 6180144, 7725180, 10300240, 15450360, 30900720]

約数ペア:

[(1, 30900720), (2, 15450360), (3, 10300240), (4, 7725180), (5, 6180144), (6, 5150120), (8, 3862590), (10, 3090072), (12, 2575060), (15, 2060048), (16, 1931295), (20, 1545036), (24, 1287530), (30, 1030024), (40, 772518), (48, 643765), (60, 515012), (80, 386259), (120, 257506), (199, 155280), (240, 128753), (398, 77640), (597, 51760), (647, 47760), (796, 38820), (995, 31056), (1194, 25880), (1294, 23880), (1592, 19410), (1941, 15920), (1990, 15528), (2388, 12940), (2588, 11940), (2985, 10352), (3184, 9705), (3235, 9552), (3882, 7960), (3980, 7764), (4776, 6470), (5176, 5970)]