1996172912135

素因数分解:

$5^1\times {\mathrm{31}}^1\times {\mathrm{521}}^1\times {\mathrm{1229}}^1\times {\mathrm{20113}}^1$

素因数の和:21899

約数の個数: 32

約数和(自身を含む): 2479563809280

約数和(自身を除く): 483390897145

約数列:

[1, 5, 31, 155, 521, 1229, 2605, 6145, 16151, 20113, 38099, 80755, 100565, 190495, 623503, 640309, 3117515, 3201545, 10478873, 19849579, 24718877, 52394365, 99247895, 123594385, 324845063, 766285187, 1624225315, 3831425935, 12878534917, 64392674585, 399234582427, 1996172912135]

約数ペア:

[(1, 1996172912135), (5, 399234582427), (31, 64392674585), (155, 12878534917), (521, 3831425935), (1229, 1624225315), (2605, 766285187), (6145, 324845063), (16151, 123594385), (20113, 99247895), (38099, 52394365), (80755, 24718877), (100565, 19849579), (190495, 10478873), (623503, 3201545), (640309, 3117515)]