20181390986

素因数分解:

$2^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{53}}^1\times {\mathrm{397}}^1\times {\mathrm{719}}^1$

素因数の和:1223

約数の個数: 64

約数和(自身を含む): 33424358400

約数和(自身を除く): 13242967414

約数列:

[1, 2, 23, 29, 46, 53, 58, 106, 397, 667, 719, 794, 1219, 1334, 1438, 1537, 2438, 3074, 9131, 11513, 16537, 18262, 20851, 21041, 23026, 33074, 35351, 38107, 41702, 42082, 70702, 76214, 264799, 285443, 479573, 483943, 529598, 570886, 610189, 876461, 959146, 967886, 1105103, 1220378, 1752922, 2210206, 6565189, 8277847, 13130378, 14034347, 15128479, 16555694, 25417369, 28068694, 30256958, 50834738, 190390481, 347955017, 380780962, 438725891, 695910034, 877451782, 10090695493, 20181390986]

約数ペア:

[(1, 20181390986), (2, 10090695493), (23, 877451782), (29, 695910034), (46, 438725891), (53, 380780962), (58, 347955017), (106, 190390481), (397, 50834738), (667, 30256958), (719, 28068694), (794, 25417369), (1219, 16555694), (1334, 15128479), (1438, 14034347), (1537, 13130378), (2438, 8277847), (3074, 6565189), (9131, 2210206), (11513, 1752922), (16537, 1220378), (18262, 1105103), (20851, 967886), (21041, 959146), (23026, 876461), (33074, 610189), (35351, 570886), (38107, 529598), (41702, 483943), (42082, 479573), (70702, 285443), (76214, 264799)]