81038360

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{101}}^1\times {\mathrm{1543}}^1$

素因数の和:1668

約数の個数: 64

約数和(自身を含む): 198434880

約数和(自身を除く): 117396520

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 101, 104, 130, 202, 260, 404, 505, 520, 808, 1010, 1313, 1543, 2020, 2626, 3086, 4040, 5252, 6172, 6565, 7715, 10504, 12344, 13130, 15430, 20059, 26260, 30860, 40118, 52520, 61720, 80236, 100295, 155843, 160472, 200590, 311686, 401180, 623372, 779215, 802360, 1246744, 1558430, 2025959, 3116860, 4051918, 6233720, 8103836, 10129795, 16207672, 20259590, 40519180, 81038360]

約数ペア:

[(1, 81038360), (2, 40519180), (4, 20259590), (5, 16207672), (8, 10129795), (10, 8103836), (13, 6233720), (20, 4051918), (26, 3116860), (40, 2025959), (52, 1558430), (65, 1246744), (101, 802360), (104, 779215), (130, 623372), (202, 401180), (260, 311686), (404, 200590), (505, 160472), (520, 155843), (808, 100295), (1010, 80236), (1313, 61720), (1543, 52520), (2020, 40118), (2626, 30860), (3086, 26260), (4040, 20059), (5252, 15430), (6172, 13130), (6565, 12344), (7715, 10504)]