138423520

素因数分解:

$2^5\times 5^1\times {\mathrm{17}}^1\times {\mathrm{50891}}^1$

素因数の和:50923

約数の個数: 48

約数和(自身を含む): 346269168

約数和(自身を除く): 207845648

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 32, 34, 40, 68, 80, 85, 136, 160, 170, 272, 340, 544, 680, 1360, 2720, 50891, 101782, 203564, 254455, 407128, 508910, 814256, 865147, 1017820, 1628512, 1730294, 2035640, 3460588, 4071280, 4325735, 6921176, 8142560, 8651470, 13842352, 17302940, 27684704, 34605880, 69211760, 138423520]

約数ペア:

[(1, 138423520), (2, 69211760), (4, 34605880), (5, 27684704), (8, 17302940), (10, 13842352), (16, 8651470), (17, 8142560), (20, 6921176), (32, 4325735), (34, 4071280), (40, 3460588), (68, 2035640), (80, 1730294), (85, 1628512), (136, 1017820), (160, 865147), (170, 814256), (272, 508910), (340, 407128), (544, 254455), (680, 203564), (1360, 101782), (2720, 50891)]