81077220

素因数分解:

$2^2\times 3^3\times 5^1\times 7^1\times {\mathrm{89}}^1\times {\mathrm{241}}^1$

素因数の和:355

約数の個数: 192

約数和(自身を含む): 292723200

約数和(自身を除く): 211645980

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 27, 28, 30, 35, 36, 42, 45, 54, 60, 63, 70, 84, 89, 90, 105, 108, 126, 135, 140, 178, 180, 189, 210, 241, 252, 267, 270, 315, 356, 378, 420, 445, 482, 534, 540, 623, 630, 723, 756, 801, 890, 945, 964, 1068, 1205, 1246, 1260, 1335, 1446, 1602, 1687, 1780, 1869, 1890, 2169, 2403, 2410, 2492, 2670, 2892, 3115, 3204, 3374, 3615, 3738, 3780, 4005, 4338, 4806, 4820, 5061, 5340, 5607, 6230, 6507, 6748, 7230, 7476, 8010, 8435, 8676, 9345, 9612, 10122, 10845, 11214, 12015, 12460, 13014, 14460, 15183, 16020, 16821, 16870, 18690, 20244, 21449, 21690, 22428, 24030, 25305, 26028, 28035, 30366, 32535, 33642, 33740, 37380, 42898, 43380, 45549, 48060, 50610, 56070, 60732, 64347, 65070, 67284, 75915, 84105, 85796, 91098, 101220, 107245, 112140, 128694, 130140, 150143, 151830, 168210, 182196, 193041, 214490, 227745, 257388, 300286, 303660, 321735, 336420, 386082, 428980, 450429, 455490, 579123, 600572, 643470, 750715, 772164, 900858, 910980, 965205, 1158246, 1286940, 1351287, 1501430, 1801716, 1930410, 2252145, 2316492, 2702574, 2895615, 3002860, 3860820, 4053861, 4504290, 5405148, 5791230, 6756435, 8107722, 9008580, 11582460, 13512870, 16215444, 20269305, 27025740, 40538610, 81077220]

約数ペア:

[(1, 81077220), (2, 40538610), (3, 27025740), (4, 20269305), (5, 16215444), (6, 13512870), (7, 11582460), (9, 9008580), (10, 8107722), (12, 6756435), (14, 5791230), (15, 5405148), (18, 4504290), (20, 4053861), (21, 3860820), (27, 3002860), (28, 2895615), (30, 2702574), (35, 2316492), (36, 2252145), (42, 1930410), (45, 1801716), (54, 1501430), (60, 1351287), (63, 1286940), (70, 1158246), (84, 965205), (89, 910980), (90, 900858), (105, 772164), (108, 750715), (126, 643470), (135, 600572), (140, 579123), (178, 455490), (180, 450429), (189, 428980), (210, 386082), (241, 336420), (252, 321735), (267, 303660), (270, 300286), (315, 257388), (356, 227745), (378, 214490), (420, 193041), (445, 182196), (482, 168210), (534, 151830), (540, 150143), (623, 130140), (630, 128694), (723, 112140), (756, 107245), (801, 101220), (890, 91098), (945, 85796), (964, 84105), (1068, 75915), (1205, 67284), (1246, 65070), (1260, 64347), (1335, 60732), (1446, 56070), (1602, 50610), (1687, 48060), (1780, 45549), (1869, 43380), (1890, 42898), (2169, 37380), (2403, 33740), (2410, 33642), (2492, 32535), (2670, 30366), (2892, 28035), (3115, 26028), (3204, 25305), (3374, 24030), (3615, 22428), (3738, 21690), (3780, 21449), (4005, 20244), (4338, 18690), (4806, 16870), (4820, 16821), (5061, 16020), (5340, 15183), (5607, 14460), (6230, 13014), (6507, 12460), (6748, 12015), (7230, 11214), (7476, 10845), (8010, 10122), (8435, 9612), (8676, 9345)]