1253451520

素因数分解:

$2^8\times 5^1\times {\mathrm{31}}^2\times {\mathrm{1019}}^1$

素因数の和:1102

約数の個数: 108

約数和(自身を含む): 3105428760

約数和(自身を除く): 1851977240

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 128, 155, 160, 248, 256, 310, 320, 496, 620, 640, 961, 992, 1019, 1240, 1280, 1922, 1984, 2038, 2480, 3844, 3968, 4076, 4805, 4960, 5095, 7688, 7936, 8152, 9610, 9920, 10190, 15376, 16304, 19220, 19840, 20380, 30752, 31589, 32608, 38440, 39680, 40760, 61504, 63178, 65216, 76880, 81520, 123008, 126356, 130432, 153760, 157945, 163040, 246016, 252712, 260864, 307520, 315890, 326080, 505424, 615040, 631780, 652160, 979259, 1010848, 1230080, 1263560, 1304320, 1958518, 2021696, 2527120, 3917036, 4043392, 4896295, 5054240, 7834072, 8086784, 9792590, 10108480, 15668144, 19585180, 20216960, 31336288, 39170360, 40433920, 62672576, 78340720, 125345152, 156681440, 250690304, 313362880, 626725760, 1253451520]

約数ペア:

[(1, 1253451520), (2, 626725760), (4, 313362880), (5, 250690304), (8, 156681440), (10, 125345152), (16, 78340720), (20, 62672576), (31, 40433920), (32, 39170360), (40, 31336288), (62, 20216960), (64, 19585180), (80, 15668144), (124, 10108480), (128, 9792590), (155, 8086784), (160, 7834072), (248, 5054240), (256, 4896295), (310, 4043392), (320, 3917036), (496, 2527120), (620, 2021696), (640, 1958518), (961, 1304320), (992, 1263560), (1019, 1230080), (1240, 1010848), (1280, 979259), (1922, 652160), (1984, 631780), (2038, 615040), (2480, 505424), (3844, 326080), (3968, 315890), (4076, 307520), (4805, 260864), (4960, 252712), (5095, 246016), (7688, 163040), (7936, 157945), (8152, 153760), (9610, 130432), (9920, 126356), (10190, 123008), (15376, 81520), (16304, 76880), (19220, 65216), (19840, 63178), (20380, 61504), (30752, 40760), (31589, 39680), (32608, 38440)]