27984720

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^3$

素因数の和:90

約数の個数: 160

約数和(自身を含む): 96958080

約数和(自身を除く): 68973360

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 17, 19, 20, 24, 30, 34, 38, 40, 48, 51, 57, 60, 68, 76, 80, 85, 95, 102, 114, 120, 136, 152, 170, 190, 204, 228, 240, 255, 272, 285, 304, 323, 340, 361, 380, 408, 456, 510, 570, 646, 680, 722, 760, 816, 912, 969, 1020, 1083, 1140, 1292, 1360, 1444, 1520, 1615, 1805, 1938, 2040, 2166, 2280, 2584, 2888, 3230, 3610, 3876, 4080, 4332, 4560, 4845, 5168, 5415, 5776, 6137, 6460, 6859, 7220, 7752, 8664, 9690, 10830, 12274, 12920, 13718, 14440, 15504, 17328, 18411, 19380, 20577, 21660, 24548, 25840, 27436, 28880, 30685, 34295, 36822, 38760, 41154, 43320, 49096, 54872, 61370, 68590, 73644, 77520, 82308, 86640, 92055, 98192, 102885, 109744, 116603, 122740, 137180, 147288, 164616, 184110, 205770, 233206, 245480, 274360, 294576, 329232, 349809, 368220, 411540, 466412, 490960, 548720, 583015, 699618, 736440, 823080, 932824, 1166030, 1399236, 1472880, 1646160, 1749045, 1865648, 2332060, 2798472, 3498090, 4664120, 5596944, 6996180, 9328240, 13992360, 27984720]

約数ペア:

[(1, 27984720), (2, 13992360), (3, 9328240), (4, 6996180), (5, 5596944), (6, 4664120), (8, 3498090), (10, 2798472), (12, 2332060), (15, 1865648), (16, 1749045), (17, 1646160), (19, 1472880), (20, 1399236), (24, 1166030), (30, 932824), (34, 823080), (38, 736440), (40, 699618), (48, 583015), (51, 548720), (57, 490960), (60, 466412), (68, 411540), (76, 368220), (80, 349809), (85, 329232), (95, 294576), (102, 274360), (114, 245480), (120, 233206), (136, 205770), (152, 184110), (170, 164616), (190, 147288), (204, 137180), (228, 122740), (240, 116603), (255, 109744), (272, 102885), (285, 98192), (304, 92055), (323, 86640), (340, 82308), (361, 77520), (380, 73644), (408, 68590), (456, 61370), (510, 54872), (570, 49096), (646, 43320), (680, 41154), (722, 38760), (760, 36822), (816, 34295), (912, 30685), (969, 28880), (1020, 27436), (1083, 25840), (1140, 24548), (1292, 21660), (1360, 20577), (1444, 19380), (1520, 18411), (1615, 17328), (1805, 15504), (1938, 14440), (2040, 13718), (2166, 12920), (2280, 12274), (2584, 10830), (2888, 9690), (3230, 8664), (3610, 7752), (3876, 7220), (4080, 6859), (4332, 6460), (4560, 6137), (4845, 5776), (5168, 5415)]