1220066380

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^2\times {\mathrm{257}}^1$

素因数の和:360

約数の個数: 144

約数和(自身を含む): 3012841440

約数和(自身を除く): 1792775060

約数列:

[1, 2, 4, 5, 10, 13, 19, 20, 26, 31, 38, 52, 62, 65, 76, 95, 124, 130, 155, 190, 247, 257, 260, 310, 380, 403, 494, 514, 589, 620, 806, 961, 988, 1028, 1178, 1235, 1285, 1612, 1922, 2015, 2356, 2470, 2570, 2945, 3341, 3844, 4030, 4805, 4883, 4940, 5140, 5890, 6682, 7657, 7967, 8060, 9610, 9766, 11780, 12493, 13364, 15314, 15934, 16705, 18259, 19220, 19532, 24415, 24986, 30628, 31868, 33410, 36518, 38285, 39835, 48830, 49972, 62465, 63479, 66820, 73036, 76570, 79670, 91295, 97660, 103571, 124930, 126958, 151373, 153140, 159340, 182590, 207142, 237367, 246977, 249860, 253916, 302746, 317395, 365180, 414284, 474734, 493954, 517855, 605492, 634790, 756865, 949468, 987908, 1035710, 1186835, 1234885, 1269580, 1513730, 1967849, 2071420, 2373670, 2469770, 3027460, 3210701, 3935698, 4692563, 4747340, 4939540, 6421402, 7871396, 9385126, 9839245, 12842804, 16053505, 18770252, 19678490, 23462815, 32107010, 39356980, 46925630, 61003319, 64214020, 93851260, 122006638, 244013276, 305016595, 610033190, 1220066380]

約数ペア:

[(1, 1220066380), (2, 610033190), (4, 305016595), (5, 244013276), (10, 122006638), (13, 93851260), (19, 64214020), (20, 61003319), (26, 46925630), (31, 39356980), (38, 32107010), (52, 23462815), (62, 19678490), (65, 18770252), (76, 16053505), (95, 12842804), (124, 9839245), (130, 9385126), (155, 7871396), (190, 6421402), (247, 4939540), (257, 4747340), (260, 4692563), (310, 3935698), (380, 3210701), (403, 3027460), (494, 2469770), (514, 2373670), (589, 2071420), (620, 1967849), (806, 1513730), (961, 1269580), (988, 1234885), (1028, 1186835), (1178, 1035710), (1235, 987908), (1285, 949468), (1612, 756865), (1922, 634790), (2015, 605492), (2356, 517855), (2470, 493954), (2570, 474734), (2945, 414284), (3341, 365180), (3844, 317395), (4030, 302746), (4805, 253916), (4883, 249860), (4940, 246977), (5140, 237367), (5890, 207142), (6682, 182590), (7657, 159340), (7967, 153140), (8060, 151373), (9610, 126958), (9766, 124930), (11780, 103571), (12493, 97660), (13364, 91295), (15314, 79670), (15934, 76570), (16705, 73036), (18259, 66820), (19220, 63479), (19532, 62465), (24415, 49972), (24986, 48830), (30628, 39835), (31868, 38285), (33410, 36518)]