31723540

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{2693}}^1$

素因数の和:2752

約数の個数: 48

約数和(自身を含む): 72414720

約数和(自身を除く): 40691180

約数列:

[1, 2, 4, 5, 10, 19, 20, 31, 38, 62, 76, 95, 124, 155, 190, 310, 380, 589, 620, 1178, 2356, 2693, 2945, 5386, 5890, 10772, 11780, 13465, 26930, 51167, 53860, 83483, 102334, 166966, 204668, 255835, 333932, 417415, 511670, 834830, 1023340, 1586177, 1669660, 3172354, 6344708, 7930885, 15861770, 31723540]

約数ペア:

[(1, 31723540), (2, 15861770), (4, 7930885), (5, 6344708), (10, 3172354), (19, 1669660), (20, 1586177), (31, 1023340), (38, 834830), (62, 511670), (76, 417415), (95, 333932), (124, 255835), (155, 204668), (190, 166966), (310, 102334), (380, 83483), (589, 53860), (620, 51167), (1178, 26930), (2356, 13465), (2693, 11780), (2945, 10772), (5386, 5890)]