206970880

素因数分解:

$2^{13}\times 5^1\times {\mathrm{31}}^1\times {\mathrm{163}}^1$

素因数の和:225

約数の個数: 112

約数和(自身を含む): 515867904

約数和(自身を除く): 308897024

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 128, 155, 160, 163, 248, 256, 310, 320, 326, 496, 512, 620, 640, 652, 815, 992, 1024, 1240, 1280, 1304, 1630, 1984, 2048, 2480, 2560, 2608, 3260, 3968, 4096, 4960, 5053, 5120, 5216, 6520, 7936, 8192, 9920, 10106, 10240, 10432, 13040, 15872, 19840, 20212, 20480, 20864, 25265, 26080, 31744, 39680, 40424, 40960, 41728, 50530, 52160, 63488, 79360, 80848, 83456, 101060, 104320, 126976, 158720, 161696, 166912, 202120, 208640, 253952, 317440, 323392, 333824, 404240, 417280, 634880, 646784, 667648, 808480, 834560, 1269760, 1293568, 1335296, 1616960, 1669120, 2587136, 3233920, 3338240, 5174272, 6467840, 6676480, 10348544, 12935680, 20697088, 25871360, 41394176, 51742720, 103485440, 206970880]

約数ペア:

[(1, 206970880), (2, 103485440), (4, 51742720), (5, 41394176), (8, 25871360), (10, 20697088), (16, 12935680), (20, 10348544), (31, 6676480), (32, 6467840), (40, 5174272), (62, 3338240), (64, 3233920), (80, 2587136), (124, 1669120), (128, 1616960), (155, 1335296), (160, 1293568), (163, 1269760), (248, 834560), (256, 808480), (310, 667648), (320, 646784), (326, 634880), (496, 417280), (512, 404240), (620, 333824), (640, 323392), (652, 317440), (815, 253952), (992, 208640), (1024, 202120), (1240, 166912), (1280, 161696), (1304, 158720), (1630, 126976), (1984, 104320), (2048, 101060), (2480, 83456), (2560, 80848), (2608, 79360), (3260, 63488), (3968, 52160), (4096, 50530), (4960, 41728), (5053, 40960), (5120, 40424), (5216, 39680), (6520, 31744), (7936, 26080), (8192, 25265), (9920, 20864), (10106, 20480), (10240, 20212), (10432, 19840), (13040, 15872)]