78128830

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^2\times {\mathrm{439}}^1$

素因数の和:533

約数の個数: 48

約数和(自身を含む): 156008160

約数和(自身を除く): 77879330

約数列:

[1, 2, 5, 10, 13, 26, 37, 65, 74, 130, 185, 370, 439, 481, 878, 962, 1369, 2195, 2405, 2738, 4390, 4810, 5707, 6845, 11414, 13690, 16243, 17797, 28535, 32486, 35594, 57070, 81215, 88985, 162430, 177970, 211159, 422318, 600991, 1055795, 1201982, 2111590, 3004955, 6009910, 7812883, 15625766, 39064415, 78128830]

約数ペア:

[(1, 78128830), (2, 39064415), (5, 15625766), (10, 7812883), (13, 6009910), (26, 3004955), (37, 2111590), (65, 1201982), (74, 1055795), (130, 600991), (185, 422318), (370, 211159), (439, 177970), (481, 162430), (878, 88985), (962, 81215), (1369, 57070), (2195, 35594), (2405, 32486), (2738, 28535), (4390, 17797), (4810, 16243), (5707, 13690), (6845, 11414)]