80387960

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{241}}^1\times {\mathrm{269}}^1$

素因数の和:552

約数の個数: 64

約数和(自身を含む): 188179200

約数和(自身を除く): 107791240

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 241, 248, 269, 310, 482, 538, 620, 964, 1076, 1205, 1240, 1345, 1928, 2152, 2410, 2690, 4820, 5380, 7471, 8339, 9640, 10760, 14942, 16678, 29884, 33356, 37355, 41695, 59768, 64829, 66712, 74710, 83390, 129658, 149420, 166780, 259316, 298840, 324145, 333560, 518632, 648290, 1296580, 2009699, 2593160, 4019398, 8038796, 10048495, 16077592, 20096990, 40193980, 80387960]

約数ペア:

[(1, 80387960), (2, 40193980), (4, 20096990), (5, 16077592), (8, 10048495), (10, 8038796), (20, 4019398), (31, 2593160), (40, 2009699), (62, 1296580), (124, 648290), (155, 518632), (241, 333560), (248, 324145), (269, 298840), (310, 259316), (482, 166780), (538, 149420), (620, 129658), (964, 83390), (1076, 74710), (1205, 66712), (1240, 64829), (1345, 59768), (1928, 41695), (2152, 37355), (2410, 33356), (2690, 29884), (4820, 16678), (5380, 14942), (7471, 10760), (8339, 9640)]