207913280

素因数分解:

$2^6\times 5^1\times {\mathrm{31}}^1\times {\mathrm{20959}}^1$

素因数の和:21007

約数の個数: 56

約数和(自身を含む): 511088640

約数和(自身を除く): 303175360

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 155, 160, 248, 310, 320, 496, 620, 992, 1240, 1984, 2480, 4960, 9920, 20959, 41918, 83836, 104795, 167672, 209590, 335344, 419180, 649729, 670688, 838360, 1299458, 1341376, 1676720, 2598916, 3248645, 3353440, 5197832, 6497290, 6706880, 10395664, 12994580, 20791328, 25989160, 41582656, 51978320, 103956640, 207913280]

約数ペア:

[(1, 207913280), (2, 103956640), (4, 51978320), (5, 41582656), (8, 25989160), (10, 20791328), (16, 12994580), (20, 10395664), (31, 6706880), (32, 6497290), (40, 5197832), (62, 3353440), (64, 3248645), (80, 2598916), (124, 1676720), (155, 1341376), (160, 1299458), (248, 838360), (310, 670688), (320, 649729), (496, 419180), (620, 335344), (992, 209590), (1240, 167672), (1984, 104795), (2480, 83836), (4960, 41918), (9920, 20959)]