20815708725

素因数分解:

$3^3\times 5^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{142111}}^1$

素因数の和:142168

約数の個数: 96

約数和(自身を含む): 45112033280

約数和(自身を除く): 24296324555

約数列:

[1, 3, 5, 7, 9, 15, 21, 25, 27, 31, 35, 45, 63, 75, 93, 105, 135, 155, 175, 189, 217, 225, 279, 315, 465, 525, 651, 675, 775, 837, 945, 1085, 1395, 1575, 1953, 2325, 3255, 4185, 4725, 5425, 5859, 6975, 9765, 16275, 20925, 29295, 48825, 142111, 146475, 426333, 710555, 994777, 1278999, 2131665, 2984331, 3552775, 3836997, 4405441, 4973885, 6394995, 8952993, 10658325, 13216323, 14921655, 19184985, 22027205, 24869425, 26858979, 30838087, 31974975, 39648969, 44764965, 66081615, 74608275, 92514261, 95924925, 110136025, 118946907, 134294895, 154190435, 198244845, 223824825, 277542783, 330408075, 462571305, 594734535, 671474475, 770952175, 832628349, 991224225, 1387713915, 2312856525, 2973672675, 4163141745, 6938569575, 20815708725]

約数ペア:

[(1, 20815708725), (3, 6938569575), (5, 4163141745), (7, 2973672675), (9, 2312856525), (15, 1387713915), (21, 991224225), (25, 832628349), (27, 770952175), (31, 671474475), (35, 594734535), (45, 462571305), (63, 330408075), (75, 277542783), (93, 223824825), (105, 198244845), (135, 154190435), (155, 134294895), (175, 118946907), (189, 110136025), (217, 95924925), (225, 92514261), (279, 74608275), (315, 66081615), (465, 44764965), (525, 39648969), (651, 31974975), (675, 30838087), (775, 26858979), (837, 24869425), (945, 22027205), (1085, 19184985), (1395, 14921655), (1575, 13216323), (1953, 10658325), (2325, 8952993), (3255, 6394995), (4185, 4973885), (4725, 4405441), (5425, 3836997), (5859, 3552775), (6975, 2984331), (9765, 2131665), (16275, 1278999), (20925, 994777), (29295, 710555), (48825, 426333), (142111, 146475)]