12957940480

素因数分解:

$2^8\times 5^1\times {\mathrm{31}}^1\times {\mathrm{326561}}^1$

素因数の和:326613

約数の個数: 72

約数和(自身を含む): 32039650944

約数和(自身を除く): 19081710464

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 128, 155, 160, 248, 256, 310, 320, 496, 620, 640, 992, 1240, 1280, 1984, 2480, 3968, 4960, 7936, 9920, 19840, 39680, 326561, 653122, 1306244, 1632805, 2612488, 3265610, 5224976, 6531220, 10123391, 10449952, 13062440, 20246782, 20899904, 26124880, 40493564, 41799808, 50616955, 52249760, 80987128, 83599616, 101233910, 104499520, 161974256, 202467820, 208999040, 323948512, 404935640, 417998080, 647897024, 809871280, 1295794048, 1619742560, 2591588096, 3239485120, 6478970240, 12957940480]

約数ペア:

[(1, 12957940480), (2, 6478970240), (4, 3239485120), (5, 2591588096), (8, 1619742560), (10, 1295794048), (16, 809871280), (20, 647897024), (31, 417998080), (32, 404935640), (40, 323948512), (62, 208999040), (64, 202467820), (80, 161974256), (124, 104499520), (128, 101233910), (155, 83599616), (160, 80987128), (248, 52249760), (256, 50616955), (310, 41799808), (320, 40493564), (496, 26124880), (620, 20899904), (640, 20246782), (992, 13062440), (1240, 10449952), (1280, 10123391), (1984, 6531220), (2480, 5224976), (3968, 3265610), (4960, 2612488), (7936, 1632805), (9920, 1306244), (19840, 653122), (39680, 326561)]