39687440

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{1231}}^1$

素因数の和:1288

約数の個数: 80

約数和(自身を含む): 102660096

約数和(自身を除く): 62972656

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 31, 40, 52, 62, 65, 80, 104, 124, 130, 155, 208, 248, 260, 310, 403, 496, 520, 620, 806, 1040, 1231, 1240, 1612, 2015, 2462, 2480, 3224, 4030, 4924, 6155, 6448, 8060, 9848, 12310, 16003, 16120, 19696, 24620, 32006, 32240, 38161, 49240, 64012, 76322, 80015, 98480, 128024, 152644, 160030, 190805, 256048, 305288, 320060, 381610, 496093, 610576, 640120, 763220, 992186, 1280240, 1526440, 1984372, 2480465, 3052880, 3968744, 4960930, 7937488, 9921860, 19843720, 39687440]

約数ペア:

[(1, 39687440), (2, 19843720), (4, 9921860), (5, 7937488), (8, 4960930), (10, 3968744), (13, 3052880), (16, 2480465), (20, 1984372), (26, 1526440), (31, 1280240), (40, 992186), (52, 763220), (62, 640120), (65, 610576), (80, 496093), (104, 381610), (124, 320060), (130, 305288), (155, 256048), (208, 190805), (248, 160030), (260, 152644), (310, 128024), (403, 98480), (496, 80015), (520, 76322), (620, 64012), (806, 49240), (1040, 38161), (1231, 32240), (1240, 32006), (1612, 24620), (2015, 19696), (2462, 16120), (2480, 16003), (3224, 12310), (4030, 9848), (4924, 8060), (6155, 6448)]