18691560

素因数分解:

$2^3\times 3^6\times 5^1\times {\mathrm{641}}^1$

素因数の和:670

約数の個数: 112

約数和(自身を含む): 63153540

約数和(自身を除く): 44461980

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 27, 30, 36, 40, 45, 54, 60, 72, 81, 90, 108, 120, 135, 162, 180, 216, 243, 270, 324, 360, 405, 486, 540, 641, 648, 729, 810, 972, 1080, 1215, 1282, 1458, 1620, 1923, 1944, 2430, 2564, 2916, 3205, 3240, 3645, 3846, 4860, 5128, 5769, 5832, 6410, 7290, 7692, 9615, 9720, 11538, 12820, 14580, 15384, 17307, 19230, 23076, 25640, 28845, 29160, 34614, 38460, 46152, 51921, 57690, 69228, 76920, 86535, 103842, 115380, 138456, 155763, 173070, 207684, 230760, 259605, 311526, 346140, 415368, 467289, 519210, 623052, 692280, 778815, 934578, 1038420, 1246104, 1557630, 1869156, 2076840, 2336445, 3115260, 3738312, 4672890, 6230520, 9345780, 18691560]

約数ペア:

[(1, 18691560), (2, 9345780), (3, 6230520), (4, 4672890), (5, 3738312), (6, 3115260), (8, 2336445), (9, 2076840), (10, 1869156), (12, 1557630), (15, 1246104), (18, 1038420), (20, 934578), (24, 778815), (27, 692280), (30, 623052), (36, 519210), (40, 467289), (45, 415368), (54, 346140), (60, 311526), (72, 259605), (81, 230760), (90, 207684), (108, 173070), (120, 155763), (135, 138456), (162, 115380), (180, 103842), (216, 86535), (243, 76920), (270, 69228), (324, 57690), (360, 51921), (405, 46152), (486, 38460), (540, 34614), (641, 29160), (648, 28845), (729, 25640), (810, 23076), (972, 19230), (1080, 17307), (1215, 15384), (1282, 14580), (1458, 12820), (1620, 11538), (1923, 9720), (1944, 9615), (2430, 7692), (2564, 7290), (2916, 6410), (3205, 5832), (3240, 5769), (3645, 5128), (3846, 4860)]