247784520

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{5281}}^1$

素因数の和:5335

約数の個数: 128

約数和(自身を含む): 821456640

約数和(自身を除く): 573672120

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 17, 20, 23, 24, 30, 34, 40, 46, 51, 60, 68, 69, 85, 92, 102, 115, 120, 136, 138, 170, 184, 204, 230, 255, 276, 340, 345, 391, 408, 460, 510, 552, 680, 690, 782, 920, 1020, 1173, 1380, 1564, 1955, 2040, 2346, 2760, 3128, 3910, 4692, 5281, 5865, 7820, 9384, 10562, 11730, 15640, 15843, 21124, 23460, 26405, 31686, 42248, 46920, 52810, 63372, 79215, 89777, 105620, 121463, 126744, 158430, 179554, 211240, 242926, 269331, 316860, 359108, 364389, 448885, 485852, 538662, 607315, 633720, 718216, 728778, 897770, 971704, 1077324, 1214630, 1346655, 1457556, 1795540, 1821945, 2064871, 2154648, 2429260, 2693310, 2915112, 3591080, 3643890, 4129742, 4858520, 5386620, 6194613, 7287780, 8259484, 10324355, 10773240, 12389226, 14575560, 16518968, 20648710, 24778452, 30973065, 41297420, 49556904, 61946130, 82594840, 123892260, 247784520]

約数ペア:

[(1, 247784520), (2, 123892260), (3, 82594840), (4, 61946130), (5, 49556904), (6, 41297420), (8, 30973065), (10, 24778452), (12, 20648710), (15, 16518968), (17, 14575560), (20, 12389226), (23, 10773240), (24, 10324355), (30, 8259484), (34, 7287780), (40, 6194613), (46, 5386620), (51, 4858520), (60, 4129742), (68, 3643890), (69, 3591080), (85, 2915112), (92, 2693310), (102, 2429260), (115, 2154648), (120, 2064871), (136, 1821945), (138, 1795540), (170, 1457556), (184, 1346655), (204, 1214630), (230, 1077324), (255, 971704), (276, 897770), (340, 728778), (345, 718216), (391, 633720), (408, 607315), (460, 538662), (510, 485852), (552, 448885), (680, 364389), (690, 359108), (782, 316860), (920, 269331), (1020, 242926), (1173, 211240), (1380, 179554), (1564, 158430), (1955, 126744), (2040, 121463), (2346, 105620), (2760, 89777), (3128, 79215), (3910, 63372), (4692, 52810), (5281, 46920), (5865, 42248), (7820, 31686), (9384, 26405), (10562, 23460), (11730, 21124), (15640, 15843)]