198876780

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{1229}}^1$

素因数の和:1304

約数の個数: 144

約数和(自身を含む): 644716800

約数和(自身を除く): 445840020

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 29, 30, 31, 36, 45, 58, 60, 62, 87, 90, 93, 116, 124, 145, 155, 174, 180, 186, 261, 279, 290, 310, 348, 372, 435, 465, 522, 558, 580, 620, 870, 899, 930, 1044, 1116, 1229, 1305, 1395, 1740, 1798, 1860, 2458, 2610, 2697, 2790, 3596, 3687, 4495, 4916, 5220, 5394, 5580, 6145, 7374, 8091, 8990, 10788, 11061, 12290, 13485, 14748, 16182, 17980, 18435, 22122, 24580, 26970, 32364, 35641, 36870, 38099, 40455, 44244, 53940, 55305, 71282, 73740, 76198, 80910, 106923, 110610, 114297, 142564, 152396, 161820, 178205, 190495, 213846, 221220, 228594, 320769, 342891, 356410, 380990, 427692, 457188, 534615, 571485, 641538, 685782, 712820, 761980, 1069230, 1104871, 1142970, 1283076, 1371564, 1603845, 1714455, 2138460, 2209742, 2285940, 3207690, 3314613, 3428910, 4419484, 5524355, 6415380, 6629226, 6857820, 9943839, 11048710, 13258452, 16573065, 19887678, 22097420, 33146130, 39775356, 49719195, 66292260, 99438390, 198876780]

約数ペア:

[(1, 198876780), (2, 99438390), (3, 66292260), (4, 49719195), (5, 39775356), (6, 33146130), (9, 22097420), (10, 19887678), (12, 16573065), (15, 13258452), (18, 11048710), (20, 9943839), (29, 6857820), (30, 6629226), (31, 6415380), (36, 5524355), (45, 4419484), (58, 3428910), (60, 3314613), (62, 3207690), (87, 2285940), (90, 2209742), (93, 2138460), (116, 1714455), (124, 1603845), (145, 1371564), (155, 1283076), (174, 1142970), (180, 1104871), (186, 1069230), (261, 761980), (279, 712820), (290, 685782), (310, 641538), (348, 571485), (372, 534615), (435, 457188), (465, 427692), (522, 380990), (558, 356410), (580, 342891), (620, 320769), (870, 228594), (899, 221220), (930, 213846), (1044, 190495), (1116, 178205), (1229, 161820), (1305, 152396), (1395, 142564), (1740, 114297), (1798, 110610), (1860, 106923), (2458, 80910), (2610, 76198), (2697, 73740), (2790, 71282), (3596, 55305), (3687, 53940), (4495, 44244), (4916, 40455), (5220, 38099), (5394, 36870), (5580, 35641), (6145, 32364), (7374, 26970), (8091, 24580), (8990, 22122), (10788, 18435), (11061, 17980), (12290, 16182), (13485, 14748)]