19963098880

素因数分解:

$2^8\times 5^1\times {\mathrm{29}}^1\times {\mathrm{641}}^1\times {\mathrm{839}}^1$

素因数の和:1530

約数の個数: 144

約数和(自身を含む): 49602974400

約数和(自身を除く): 29639875520

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 29, 32, 40, 58, 64, 80, 116, 128, 145, 160, 232, 256, 290, 320, 464, 580, 640, 641, 839, 928, 1160, 1280, 1282, 1678, 1856, 2320, 2564, 3205, 3356, 3712, 4195, 4640, 5128, 6410, 6712, 7424, 8390, 9280, 10256, 12820, 13424, 16780, 18560, 18589, 20512, 24331, 25640, 26848, 33560, 37120, 37178, 41024, 48662, 51280, 53696, 67120, 74356, 82048, 92945, 97324, 102560, 107392, 121655, 134240, 148712, 164096, 185890, 194648, 205120, 214784, 243310, 268480, 297424, 371780, 389296, 410240, 486620, 536960, 537799, 594848, 743560, 778592, 820480, 973240, 1073920, 1075598, 1189696, 1487120, 1557184, 1946480, 2151196, 2379392, 2688995, 2974240, 3114368, 3892960, 4302392, 4758784, 5377990, 5948480, 6228736, 7785920, 8604784, 10755980, 11896960, 15571840, 15596171, 17209568, 21511960, 23793920, 31143680, 31192342, 34419136, 43023920, 62384684, 68838272, 77980855, 86047840, 124769368, 137676544, 155961710, 172095680, 249538736, 311923420, 344191360, 499077472, 623846840, 688382720, 998154944, 1247693680, 1996309888, 2495387360, 3992619776, 4990774720, 9981549440, 19963098880]

約数ペア:

[(1, 19963098880), (2, 9981549440), (4, 4990774720), (5, 3992619776), (8, 2495387360), (10, 1996309888), (16, 1247693680), (20, 998154944), (29, 688382720), (32, 623846840), (40, 499077472), (58, 344191360), (64, 311923420), (80, 249538736), (116, 172095680), (128, 155961710), (145, 137676544), (160, 124769368), (232, 86047840), (256, 77980855), (290, 68838272), (320, 62384684), (464, 43023920), (580, 34419136), (640, 31192342), (641, 31143680), (839, 23793920), (928, 21511960), (1160, 17209568), (1280, 15596171), (1282, 15571840), (1678, 11896960), (1856, 10755980), (2320, 8604784), (2564, 7785920), (3205, 6228736), (3356, 5948480), (3712, 5377990), (4195, 4758784), (4640, 4302392), (5128, 3892960), (6410, 3114368), (6712, 2974240), (7424, 2688995), (8390, 2379392), (9280, 2151196), (10256, 1946480), (12820, 1557184), (13424, 1487120), (16780, 1189696), (18560, 1075598), (18589, 1073920), (20512, 973240), (24331, 820480), (25640, 778592), (26848, 743560), (33560, 594848), (37120, 537799), (37178, 536960), (41024, 486620), (48662, 410240), (51280, 389296), (53696, 371780), (67120, 297424), (74356, 268480), (82048, 243310), (92945, 214784), (97324, 205120), (102560, 194648), (107392, 185890), (121655, 164096), (134240, 148712)]