28807860

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{463}}^1$

素因数の和:553

約数の個数: 96

約数和(自身を含む): 86994432

約数和(自身を除く): 58186572

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 17, 20, 30, 34, 51, 60, 61, 68, 85, 102, 122, 170, 183, 204, 244, 255, 305, 340, 366, 463, 510, 610, 732, 915, 926, 1020, 1037, 1220, 1389, 1830, 1852, 2074, 2315, 2778, 3111, 3660, 4148, 4630, 5185, 5556, 6222, 6945, 7871, 9260, 10370, 12444, 13890, 15555, 15742, 20740, 23613, 27780, 28243, 31110, 31484, 39355, 47226, 56486, 62220, 78710, 84729, 94452, 112972, 118065, 141215, 157420, 169458, 236130, 282430, 338916, 423645, 472260, 480131, 564860, 847290, 960262, 1440393, 1694580, 1920524, 2400655, 2880786, 4801310, 5761572, 7201965, 9602620, 14403930, 28807860]

約数ペア:

[(1, 28807860), (2, 14403930), (3, 9602620), (4, 7201965), (5, 5761572), (6, 4801310), (10, 2880786), (12, 2400655), (15, 1920524), (17, 1694580), (20, 1440393), (30, 960262), (34, 847290), (51, 564860), (60, 480131), (61, 472260), (68, 423645), (85, 338916), (102, 282430), (122, 236130), (170, 169458), (183, 157420), (204, 141215), (244, 118065), (255, 112972), (305, 94452), (340, 84729), (366, 78710), (463, 62220), (510, 56486), (610, 47226), (732, 39355), (915, 31484), (926, 31110), (1020, 28243), (1037, 27780), (1220, 23613), (1389, 20740), (1830, 15742), (1852, 15555), (2074, 13890), (2315, 12444), (2778, 10370), (3111, 9260), (3660, 7871), (4148, 6945), (4630, 6222), (5185, 5556)]