178847680

素因数分解:

$2^6\times 5^1\times {\mathrm{11}}^2\times {\mathrm{31}}^1\times {\mathrm{149}}^1$

素因数の和:219

約数の個数: 168

約数和(自身を含む): 486460800

約数和(自身を除く): 307613120

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 31, 32, 40, 44, 55, 62, 64, 80, 88, 110, 121, 124, 149, 155, 160, 176, 220, 242, 248, 298, 310, 320, 341, 352, 440, 484, 496, 596, 605, 620, 682, 704, 745, 880, 968, 992, 1192, 1210, 1240, 1364, 1490, 1639, 1705, 1760, 1936, 1984, 2384, 2420, 2480, 2728, 2980, 3278, 3410, 3520, 3751, 3872, 4619, 4768, 4840, 4960, 5456, 5960, 6556, 6820, 7502, 7744, 8195, 9238, 9536, 9680, 9920, 10912, 11920, 13112, 13640, 15004, 16390, 18029, 18476, 18755, 19360, 21824, 23095, 23840, 26224, 27280, 30008, 32780, 36058, 36952, 37510, 38720, 46190, 47680, 50809, 52448, 54560, 60016, 65560, 72116, 73904, 75020, 90145, 92380, 101618, 104896, 109120, 120032, 131120, 144232, 147808, 150040, 180290, 184760, 203236, 240064, 254045, 262240, 288464, 295616, 300080, 360580, 369520, 406472, 508090, 524480, 558899, 576928, 600160, 721160, 739040, 812944, 1016180, 1117798, 1153856, 1200320, 1442320, 1478080, 1625888, 2032360, 2235596, 2794495, 2884640, 3251776, 4064720, 4471192, 5588990, 5769280, 8129440, 8942384, 11177980, 16258880, 17884768, 22355960, 35769536, 44711920, 89423840, 178847680]

約数ペア:

[(1, 178847680), (2, 89423840), (4, 44711920), (5, 35769536), (8, 22355960), (10, 17884768), (11, 16258880), (16, 11177980), (20, 8942384), (22, 8129440), (31, 5769280), (32, 5588990), (40, 4471192), (44, 4064720), (55, 3251776), (62, 2884640), (64, 2794495), (80, 2235596), (88, 2032360), (110, 1625888), (121, 1478080), (124, 1442320), (149, 1200320), (155, 1153856), (160, 1117798), (176, 1016180), (220, 812944), (242, 739040), (248, 721160), (298, 600160), (310, 576928), (320, 558899), (341, 524480), (352, 508090), (440, 406472), (484, 369520), (496, 360580), (596, 300080), (605, 295616), (620, 288464), (682, 262240), (704, 254045), (745, 240064), (880, 203236), (968, 184760), (992, 180290), (1192, 150040), (1210, 147808), (1240, 144232), (1364, 131120), (1490, 120032), (1639, 109120), (1705, 104896), (1760, 101618), (1936, 92380), (1984, 90145), (2384, 75020), (2420, 73904), (2480, 72116), (2728, 65560), (2980, 60016), (3278, 54560), (3410, 52448), (3520, 50809), (3751, 47680), (3872, 46190), (4619, 38720), (4768, 37510), (4840, 36952), (4960, 36058), (5456, 32780), (5960, 30008), (6556, 27280), (6820, 26224), (7502, 23840), (7744, 23095), (8195, 21824), (9238, 19360), (9536, 18755), (9680, 18476), (9920, 18029), (10912, 16390), (11920, 15004), (13112, 13640)]