20885280650

素因数分解:

$2^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{526741}}^1$

素因数の和:526827

約数の個数: 48

約数和(自身を含む): 42520721208

約数和(自身を除く): 21635440558

約数列:

[1, 2, 5, 10, 13, 25, 26, 50, 61, 65, 122, 130, 305, 325, 610, 650, 793, 1525, 1586, 3050, 3965, 7930, 19825, 39650, 526741, 1053482, 2633705, 5267410, 6847633, 13168525, 13695266, 26337050, 32131201, 34238165, 64262402, 68476330, 160656005, 171190825, 321312010, 342381650, 417705613, 803280025, 835411226, 1606560050, 2088528065, 4177056130, 10442640325, 20885280650]

約数ペア:

[(1, 20885280650), (2, 10442640325), (5, 4177056130), (10, 2088528065), (13, 1606560050), (25, 835411226), (26, 803280025), (50, 417705613), (61, 342381650), (65, 321312010), (122, 171190825), (130, 160656005), (305, 68476330), (325, 64262402), (610, 34238165), (650, 32131201), (793, 26337050), (1525, 13695266), (1586, 13168525), (3050, 6847633), (3965, 5267410), (7930, 2633705), (19825, 1053482), (39650, 526741)]