20120780170

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{881}}^1\times {\mathrm{1693}}^1$

素因数の和:2671

約数の個数: 64

約数和(自身を含む): 38727279360

約数和(自身を除く): 18606499190

約数列:

[1, 2, 5, 10, 19, 38, 71, 95, 142, 190, 355, 710, 881, 1349, 1693, 1762, 2698, 3386, 4405, 6745, 8465, 8810, 13490, 16739, 16930, 32167, 33478, 62551, 64334, 83695, 120203, 125102, 160835, 167390, 240406, 312755, 321670, 601015, 625510, 1188469, 1202030, 1491533, 2283857, 2376938, 2983066, 4567714, 5942345, 7457665, 11419285, 11884690, 14915330, 22838570, 28339127, 56678254, 105898843, 141695635, 211797686, 283391270, 529494215, 1058988430, 2012078017, 4024156034, 10060390085, 20120780170]

約数ペア:

[(1, 20120780170), (2, 10060390085), (5, 4024156034), (10, 2012078017), (19, 1058988430), (38, 529494215), (71, 283391270), (95, 211797686), (142, 141695635), (190, 105898843), (355, 56678254), (710, 28339127), (881, 22838570), (1349, 14915330), (1693, 11884690), (1762, 11419285), (2698, 7457665), (3386, 5942345), (4405, 4567714), (6745, 2983066), (8465, 2376938), (8810, 2283857), (13490, 1491533), (16739, 1202030), (16930, 1188469), (32167, 625510), (33478, 601015), (62551, 321670), (64334, 312755), (83695, 240406), (120203, 167390), (125102, 160835)]