308978320

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{23}}^2\times {\mathrm{149}}^1$

素因数の和:222

約数の個数: 180

約数和(自身を含む): 879435900

約数和(自身を除く): 570457580

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 23, 28, 35, 40, 46, 49, 56, 70, 80, 92, 98, 112, 115, 140, 149, 161, 184, 196, 230, 245, 280, 298, 322, 368, 392, 460, 490, 529, 560, 596, 644, 745, 784, 805, 920, 980, 1043, 1058, 1127, 1192, 1288, 1490, 1610, 1840, 1960, 2086, 2116, 2254, 2384, 2576, 2645, 2980, 3220, 3427, 3703, 3920, 4172, 4232, 4508, 5215, 5290, 5635, 5960, 6440, 6854, 7301, 7406, 8344, 8464, 9016, 10430, 10580, 11270, 11920, 12880, 13708, 14602, 14812, 16688, 17135, 18032, 18515, 20860, 21160, 22540, 23989, 25921, 27416, 29204, 29624, 34270, 36505, 37030, 41720, 42320, 45080, 47978, 51842, 54832, 58408, 59248, 68540, 73010, 74060, 78821, 83440, 90160, 95956, 103684, 116816, 119945, 129605, 137080, 146020, 148120, 157642, 167923, 191912, 207368, 239890, 259210, 274160, 292040, 296240, 315284, 335846, 383824, 394105, 414736, 479780, 518420, 551747, 584080, 630568, 671692, 788210, 839615, 959560, 1036840, 1103494, 1261136, 1343384, 1576420, 1679230, 1919120, 2073680, 2206988, 2686768, 2758735, 3152840, 3358460, 3862229, 4413976, 5517470, 6305680, 6716920, 7724458, 8827952, 11034940, 13433840, 15448916, 19311145, 22069880, 30897832, 38622290, 44139760, 61795664, 77244580, 154489160, 308978320]

約数ペア:

[(1, 308978320), (2, 154489160), (4, 77244580), (5, 61795664), (7, 44139760), (8, 38622290), (10, 30897832), (14, 22069880), (16, 19311145), (20, 15448916), (23, 13433840), (28, 11034940), (35, 8827952), (40, 7724458), (46, 6716920), (49, 6305680), (56, 5517470), (70, 4413976), (80, 3862229), (92, 3358460), (98, 3152840), (112, 2758735), (115, 2686768), (140, 2206988), (149, 2073680), (161, 1919120), (184, 1679230), (196, 1576420), (230, 1343384), (245, 1261136), (280, 1103494), (298, 1036840), (322, 959560), (368, 839615), (392, 788210), (460, 671692), (490, 630568), (529, 584080), (560, 551747), (596, 518420), (644, 479780), (745, 414736), (784, 394105), (805, 383824), (920, 335846), (980, 315284), (1043, 296240), (1058, 292040), (1127, 274160), (1192, 259210), (1288, 239890), (1490, 207368), (1610, 191912), (1840, 167923), (1960, 157642), (2086, 148120), (2116, 146020), (2254, 137080), (2384, 129605), (2576, 119945), (2645, 116816), (2980, 103684), (3220, 95956), (3427, 90160), (3703, 83440), (3920, 78821), (4172, 74060), (4232, 73010), (4508, 68540), (5215, 59248), (5290, 58408), (5635, 54832), (5960, 51842), (6440, 47978), (6854, 45080), (7301, 42320), (7406, 41720), (8344, 37030), (8464, 36505), (9016, 34270), (10430, 29624), (10580, 29204), (11270, 27416), (11920, 25921), (12880, 23989), (13708, 22540), (14602, 21160), (14812, 20860), (16688, 18515), (17135, 18032)]