208637440

素因数分解:

$2^9\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{239}}^1$

素因数の和:304

約数の個数: 160

約数和(自身を含む): 565678080

約数和(自身を除く): 357040640

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 31, 32, 40, 44, 55, 62, 64, 80, 88, 110, 124, 128, 155, 160, 176, 220, 239, 248, 256, 310, 320, 341, 352, 440, 478, 496, 512, 620, 640, 682, 704, 880, 956, 992, 1195, 1240, 1280, 1364, 1408, 1705, 1760, 1912, 1984, 2390, 2480, 2560, 2629, 2728, 2816, 3410, 3520, 3824, 3968, 4780, 4960, 5258, 5456, 5632, 6820, 7040, 7409, 7648, 7936, 9560, 9920, 10516, 10912, 13145, 13640, 14080, 14818, 15296, 15872, 19120, 19840, 21032, 21824, 26290, 27280, 28160, 29636, 30592, 37045, 38240, 39680, 42064, 43648, 52580, 54560, 59272, 61184, 74090, 76480, 79360, 81499, 84128, 87296, 105160, 109120, 118544, 122368, 148180, 152960, 162998, 168256, 174592, 210320, 218240, 237088, 296360, 305920, 325996, 336512, 407495, 420640, 436480, 474176, 592720, 611840, 651992, 673024, 814990, 841280, 872960, 948352, 1185440, 1303984, 1346048, 1629980, 1682560, 1896704, 2370880, 2607968, 3259960, 3365120, 3793408, 4741760, 5215936, 6519920, 6730240, 9483520, 10431872, 13039840, 18967040, 20863744, 26079680, 41727488, 52159360, 104318720, 208637440]

約数ペア:

[(1, 208637440), (2, 104318720), (4, 52159360), (5, 41727488), (8, 26079680), (10, 20863744), (11, 18967040), (16, 13039840), (20, 10431872), (22, 9483520), (31, 6730240), (32, 6519920), (40, 5215936), (44, 4741760), (55, 3793408), (62, 3365120), (64, 3259960), (80, 2607968), (88, 2370880), (110, 1896704), (124, 1682560), (128, 1629980), (155, 1346048), (160, 1303984), (176, 1185440), (220, 948352), (239, 872960), (248, 841280), (256, 814990), (310, 673024), (320, 651992), (341, 611840), (352, 592720), (440, 474176), (478, 436480), (496, 420640), (512, 407495), (620, 336512), (640, 325996), (682, 305920), (704, 296360), (880, 237088), (956, 218240), (992, 210320), (1195, 174592), (1240, 168256), (1280, 162998), (1364, 152960), (1408, 148180), (1705, 122368), (1760, 118544), (1912, 109120), (1984, 105160), (2390, 87296), (2480, 84128), (2560, 81499), (2629, 79360), (2728, 76480), (2816, 74090), (3410, 61184), (3520, 59272), (3824, 54560), (3968, 52580), (4780, 43648), (4960, 42064), (5258, 39680), (5456, 38240), (5632, 37045), (6820, 30592), (7040, 29636), (7409, 28160), (7648, 27280), (7936, 26290), (9560, 21824), (9920, 21032), (10516, 19840), (10912, 19120), (13145, 15872), (13640, 15296), (14080, 14818)]