20173858705

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{13}}^2\times {\mathrm{71}}^1\times {\mathrm{397}}^1$

素因数の和:528

約数の個数: 144

約数和(自身を含む): 33478002432

約数和(自身を除く): 13304143727

約数列:

[1, 5, 7, 11, 13, 35, 55, 65, 71, 77, 91, 121, 143, 169, 355, 385, 397, 455, 497, 605, 715, 781, 845, 847, 923, 1001, 1183, 1573, 1859, 1985, 2485, 2779, 3905, 4235, 4367, 4615, 5005, 5161, 5467, 5915, 6461, 7865, 8591, 9295, 10153, 11011, 11999, 13013, 13895, 20449, 21835, 25805, 27335, 28187, 30569, 32305, 36127, 42955, 48037, 50765, 55055, 56771, 59995, 60137, 65065, 67093, 71071, 83993, 102245, 111683, 131989, 140935, 143143, 152845, 180635, 197309, 240185, 283855, 300685, 310057, 335465, 336259, 355355, 366431, 397397, 419965, 469651, 558415, 624481, 659945, 715715, 738023, 781781, 923923, 986545, 1451879, 1550285, 1681295, 1832155, 1986985, 2170399, 2348255, 2565017, 3122405, 3410627, 3690115, 3908905, 4030741, 4371367, 4619615, 4763603, 5166161, 7259395, 8118253, 10163153, 10851995, 12825085, 17053135, 20153705, 21856835, 23818015, 23874389, 25830805, 28215187, 33345221, 40591265, 44338151, 50815765, 52399633, 56827771, 119371945, 141075935, 166726105, 221690755, 261998165, 284138855, 310367057, 366797431, 576395963, 1551835285, 1833987155, 2881979815, 4034771741, 20173858705]

約数ペア:

[(1, 20173858705), (5, 4034771741), (7, 2881979815), (11, 1833987155), (13, 1551835285), (35, 576395963), (55, 366797431), (65, 310367057), (71, 284138855), (77, 261998165), (91, 221690755), (121, 166726105), (143, 141075935), (169, 119371945), (355, 56827771), (385, 52399633), (397, 50815765), (455, 44338151), (497, 40591265), (605, 33345221), (715, 28215187), (781, 25830805), (845, 23874389), (847, 23818015), (923, 21856835), (1001, 20153705), (1183, 17053135), (1573, 12825085), (1859, 10851995), (1985, 10163153), (2485, 8118253), (2779, 7259395), (3905, 5166161), (4235, 4763603), (4367, 4619615), (4615, 4371367), (5005, 4030741), (5161, 3908905), (5467, 3690115), (5915, 3410627), (6461, 3122405), (7865, 2565017), (8591, 2348255), (9295, 2170399), (10153, 1986985), (11011, 1832155), (11999, 1681295), (13013, 1550285), (13895, 1451879), (20449, 986545), (21835, 923923), (25805, 781781), (27335, 738023), (28187, 715715), (30569, 659945), (32305, 624481), (36127, 558415), (42955, 469651), (48037, 419965), (50765, 397397), (55055, 366431), (56771, 355355), (59995, 336259), (60137, 335465), (65065, 310057), (67093, 300685), (71071, 283855), (83993, 240185), (102245, 197309), (111683, 180635), (131989, 152845), (140935, 143143)]