18980125440

素因数分解:

$2^8\times 3^1\times 5^1\times {\mathrm{643}}^1\times {\mathrm{7687}}^1$

素因数の和:8354

約数の個数: 144

約数和(自身を含む): 60719947008

約数和(自身を除く): 41739821568

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 64, 80, 96, 120, 128, 160, 192, 240, 256, 320, 384, 480, 640, 643, 768, 960, 1280, 1286, 1920, 1929, 2572, 3215, 3840, 3858, 5144, 6430, 7687, 7716, 9645, 10288, 12860, 15374, 15432, 19290, 20576, 23061, 25720, 30748, 30864, 38435, 38580, 41152, 46122, 51440, 61496, 61728, 76870, 77160, 82304, 92244, 102880, 115305, 122992, 123456, 153740, 154320, 164608, 184488, 205760, 230610, 245984, 246912, 307480, 308640, 368976, 411520, 461220, 491968, 493824, 614960, 617280, 737952, 823040, 922440, 983936, 1229920, 1234560, 1475904, 1844880, 1967872, 2459840, 2469120, 2951808, 3689760, 4919680, 4942741, 5903616, 7379520, 9839360, 9885482, 14759040, 14828223, 19770964, 24713705, 29518080, 29656446, 39541928, 49427410, 59312892, 74141115, 79083856, 98854820, 118625784, 148282230, 158167712, 197709640, 237251568, 296564460, 316335424, 395419280, 474503136, 593128920, 632670848, 790838560, 949006272, 1186257840, 1265341696, 1581677120, 1898012544, 2372515680, 3163354240, 3796025088, 4745031360, 6326708480, 9490062720, 18980125440]

約数ペア:

[(1, 18980125440), (2, 9490062720), (3, 6326708480), (4, 4745031360), (5, 3796025088), (6, 3163354240), (8, 2372515680), (10, 1898012544), (12, 1581677120), (15, 1265341696), (16, 1186257840), (20, 949006272), (24, 790838560), (30, 632670848), (32, 593128920), (40, 474503136), (48, 395419280), (60, 316335424), (64, 296564460), (80, 237251568), (96, 197709640), (120, 158167712), (128, 148282230), (160, 118625784), (192, 98854820), (240, 79083856), (256, 74141115), (320, 59312892), (384, 49427410), (480, 39541928), (640, 29656446), (643, 29518080), (768, 24713705), (960, 19770964), (1280, 14828223), (1286, 14759040), (1920, 9885482), (1929, 9839360), (2572, 7379520), (3215, 5903616), (3840, 4942741), (3858, 4919680), (5144, 3689760), (6430, 2951808), (7687, 2469120), (7716, 2459840), (9645, 1967872), (10288, 1844880), (12860, 1475904), (15374, 1234560), (15432, 1229920), (19290, 983936), (20576, 922440), (23061, 823040), (25720, 737952), (30748, 617280), (30864, 614960), (38435, 493824), (38580, 491968), (41152, 461220), (46122, 411520), (51440, 368976), (61496, 308640), (61728, 307480), (76870, 246912), (77160, 245984), (82304, 230610), (92244, 205760), (102880, 184488), (115305, 164608), (122992, 154320), (123456, 153740)]