207615640

素因数分解:

$2^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{89}}^1\times {\mathrm{2011}}^1$

素因数の和:2140

約数の個数: 64

約数和(自身を含む): 488916000

約数和(自身を除く): 281300360

約数列:

[1, 2, 4, 5, 8, 10, 20, 29, 40, 58, 89, 116, 145, 178, 232, 290, 356, 445, 580, 712, 890, 1160, 1780, 2011, 2581, 3560, 4022, 5162, 8044, 10055, 10324, 12905, 16088, 20110, 20648, 25810, 40220, 51620, 58319, 80440, 103240, 116638, 178979, 233276, 291595, 357958, 466552, 583190, 715916, 894895, 1166380, 1431832, 1789790, 2332760, 3579580, 5190391, 7159160, 10380782, 20761564, 25951955, 41523128, 51903910, 103807820, 207615640]

約数ペア:

[(1, 207615640), (2, 103807820), (4, 51903910), (5, 41523128), (8, 25951955), (10, 20761564), (20, 10380782), (29, 7159160), (40, 5190391), (58, 3579580), (89, 2332760), (116, 1789790), (145, 1431832), (178, 1166380), (232, 894895), (290, 715916), (356, 583190), (445, 466552), (580, 357958), (712, 291595), (890, 233276), (1160, 178979), (1780, 116638), (2011, 103240), (2581, 80440), (3560, 58319), (4022, 51620), (5162, 40220), (8044, 25810), (10055, 20648), (10324, 20110), (12905, 16088)]