52280020

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^2\times {\mathrm{557}}^1$

素因数の和:617

約数の個数: 72

約数和(自身を含む): 125007624

約数和(自身を除く): 72727604

約数列:

[1, 2, 4, 5, 10, 13, 19, 20, 26, 38, 52, 65, 76, 95, 130, 190, 247, 260, 361, 380, 494, 557, 722, 988, 1114, 1235, 1444, 1805, 2228, 2470, 2785, 3610, 4693, 4940, 5570, 7220, 7241, 9386, 10583, 11140, 14482, 18772, 21166, 23465, 28964, 36205, 42332, 46930, 52915, 72410, 93860, 105830, 137579, 144820, 201077, 211660, 275158, 402154, 550316, 687895, 804308, 1005385, 1375790, 2010770, 2614001, 2751580, 4021540, 5228002, 10456004, 13070005, 26140010, 52280020]

約数ペア:

[(1, 52280020), (2, 26140010), (4, 13070005), (5, 10456004), (10, 5228002), (13, 4021540), (19, 2751580), (20, 2614001), (26, 2010770), (38, 1375790), (52, 1005385), (65, 804308), (76, 687895), (95, 550316), (130, 402154), (190, 275158), (247, 211660), (260, 201077), (361, 144820), (380, 137579), (494, 105830), (557, 93860), (722, 72410), (988, 52915), (1114, 46930), (1235, 42332), (1444, 36205), (1805, 28964), (2228, 23465), (2470, 21166), (2785, 18772), (3610, 14482), (4693, 11140), (4940, 10583), (5570, 9386), (7220, 7241)]