20873587560

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{407369}}^1$

素因数の和:407451

約数の個数: 128

約数和(自身を含む): 72739987200

約数和(自身を除く): 51866399640

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 61, 70, 84, 105, 120, 122, 140, 168, 183, 210, 244, 280, 305, 366, 420, 427, 488, 610, 732, 840, 854, 915, 1220, 1281, 1464, 1708, 1830, 2135, 2440, 2562, 3416, 3660, 4270, 5124, 6405, 7320, 8540, 10248, 12810, 17080, 25620, 51240, 407369, 814738, 1222107, 1629476, 2036845, 2444214, 2851583, 3258952, 4073690, 4888428, 5703166, 6110535, 8147380, 8554749, 9776856, 11406332, 12221070, 14257915, 16294760, 17109498, 22812664, 24442140, 24849509, 28515830, 34218996, 42773745, 48884280, 49699018, 57031660, 68437992, 74548527, 85547490, 99398036, 114063320, 124247545, 149097054, 171094980, 173946563, 198796072, 248495090, 298194108, 342189960, 347893126, 372742635, 496990180, 521839689, 596388216, 695786252, 745485270, 869732815, 993980360, 1043679378, 1391572504, 1490970540, 1739465630, 2087358756, 2609198445, 2981941080, 3478931260, 4174717512, 5218396890, 6957862520, 10436793780, 20873587560]

約数ペア:

[(1, 20873587560), (2, 10436793780), (3, 6957862520), (4, 5218396890), (5, 4174717512), (6, 3478931260), (7, 2981941080), (8, 2609198445), (10, 2087358756), (12, 1739465630), (14, 1490970540), (15, 1391572504), (20, 1043679378), (21, 993980360), (24, 869732815), (28, 745485270), (30, 695786252), (35, 596388216), (40, 521839689), (42, 496990180), (56, 372742635), (60, 347893126), (61, 342189960), (70, 298194108), (84, 248495090), (105, 198796072), (120, 173946563), (122, 171094980), (140, 149097054), (168, 124247545), (183, 114063320), (210, 99398036), (244, 85547490), (280, 74548527), (305, 68437992), (366, 57031660), (420, 49699018), (427, 48884280), (488, 42773745), (610, 34218996), (732, 28515830), (840, 24849509), (854, 24442140), (915, 22812664), (1220, 17109498), (1281, 16294760), (1464, 14257915), (1708, 12221070), (1830, 11406332), (2135, 9776856), (2440, 8554749), (2562, 8147380), (3416, 6110535), (3660, 5703166), (4270, 4888428), (5124, 4073690), (6405, 3258952), (7320, 2851583), (8540, 2444214), (10248, 2036845), (12810, 1629476), (17080, 1222107), (25620, 814738), (51240, 407369)]