80211340

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{61}}^1\times {\mathrm{139}}^1$

素因数の和:263

約数の個数: 96

約数和(自身を含む): 192487680

約数和(自身を除く): 112276340

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 43, 44, 55, 61, 86, 110, 122, 139, 172, 215, 220, 244, 278, 305, 430, 473, 556, 610, 671, 695, 860, 946, 1220, 1342, 1390, 1529, 1892, 2365, 2623, 2684, 2780, 3058, 3355, 4730, 5246, 5977, 6116, 6710, 7645, 8479, 9460, 10492, 11954, 13115, 13420, 15290, 16958, 23908, 26230, 28853, 29885, 30580, 33916, 42395, 52460, 57706, 59770, 65747, 84790, 93269, 115412, 119540, 131494, 144265, 169580, 186538, 262988, 288530, 328735, 364597, 373076, 466345, 577060, 657470, 729194, 932690, 1314940, 1458388, 1822985, 1865380, 3645970, 4010567, 7291940, 8021134, 16042268, 20052835, 40105670, 80211340]

約数ペア:

[(1, 80211340), (2, 40105670), (4, 20052835), (5, 16042268), (10, 8021134), (11, 7291940), (20, 4010567), (22, 3645970), (43, 1865380), (44, 1822985), (55, 1458388), (61, 1314940), (86, 932690), (110, 729194), (122, 657470), (139, 577060), (172, 466345), (215, 373076), (220, 364597), (244, 328735), (278, 288530), (305, 262988), (430, 186538), (473, 169580), (556, 144265), (610, 131494), (671, 119540), (695, 115412), (860, 93269), (946, 84790), (1220, 65747), (1342, 59770), (1390, 57706), (1529, 52460), (1892, 42395), (2365, 33916), (2623, 30580), (2684, 29885), (2780, 28853), (3058, 26230), (3355, 23908), (4730, 16958), (5246, 15290), (5977, 13420), (6116, 13115), (6710, 11954), (7645, 10492), (8479, 9460)]