28156680

素因数分解:

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

素因数の和:109

約数の個数: 192

約数和(自身を含む): 100339200

約数和(自身を除く): 72182520

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 27, 29, 30, 31, 36, 40, 45, 54, 58, 60, 62, 72, 87, 90, 93, 108, 116, 120, 124, 135, 145, 155, 174, 180, 186, 216, 232, 248, 261, 270, 279, 290, 310, 348, 360, 372, 435, 465, 522, 540, 558, 580, 620, 696, 744, 783, 837, 841, 870, 899, 930, 1044, 1080, 1116, 1160, 1240, 1305, 1395, 1566, 1674, 1682, 1740, 1798, 1860, 2088, 2232, 2523, 2610, 2697, 2790, 3132, 3348, 3364, 3480, 3596, 3720, 3915, 4185, 4205, 4495, 5046, 5220, 5394, 5580, 6264, 6696, 6728, 7192, 7569, 7830, 8091, 8370, 8410, 8990, 10092, 10440, 10788, 11160, 12615, 13485, 15138, 15660, 16182, 16740, 16820, 17980, 20184, 21576, 22707, 24273, 25230, 26071, 26970, 30276, 31320, 32364, 33480, 33640, 35960, 37845, 40455, 45414, 48546, 50460, 52142, 53940, 60552, 64728, 75690, 78213, 80910, 90828, 97092, 100920, 104284, 107880, 113535, 121365, 130355, 151380, 156426, 161820, 181656, 194184, 208568, 227070, 234639, 242730, 260710, 302760, 312852, 323640, 391065, 454140, 469278, 485460, 521420, 625704, 703917, 782130, 908280, 938556, 970920, 1042840, 1173195, 1407834, 1564260, 1877112, 2346390, 2815668, 3128520, 3519585, 4692780, 5631336, 7039170, 9385560, 14078340, 28156680]

約数ペア:

[(1, 28156680), (2, 14078340), (3, 9385560), (4, 7039170), (5, 5631336), (6, 4692780), (8, 3519585), (9, 3128520), (10, 2815668), (12, 2346390), (15, 1877112), (18, 1564260), (20, 1407834), (24, 1173195), (27, 1042840), (29, 970920), (30, 938556), (31, 908280), (36, 782130), (40, 703917), (45, 625704), (54, 521420), (58, 485460), (60, 469278), (62, 454140), (72, 391065), (87, 323640), (90, 312852), (93, 302760), (108, 260710), (116, 242730), (120, 234639), (124, 227070), (135, 208568), (145, 194184), (155, 181656), (174, 161820), (180, 156426), (186, 151380), (216, 130355), (232, 121365), (248, 113535), (261, 107880), (270, 104284), (279, 100920), (290, 97092), (310, 90828), (348, 80910), (360, 78213), (372, 75690), (435, 64728), (465, 60552), (522, 53940), (540, 52142), (558, 50460), (580, 48546), (620, 45414), (696, 40455), (744, 37845), (783, 35960), (837, 33640), (841, 33480), (870, 32364), (899, 31320), (930, 30276), (1044, 26970), (1080, 26071), (1116, 25230), (1160, 24273), (1240, 22707), (1305, 21576), (1395, 20184), (1566, 17980), (1674, 16820), (1682, 16740), (1740, 16182), (1798, 15660), (1860, 15138), (2088, 13485), (2232, 12615), (2523, 11160), (2610, 10788), (2697, 10440), (2790, 10092), (3132, 8990), (3348, 8410), (3364, 8370), (3480, 8091), (3596, 7830), (3720, 7569), (3915, 7192), (4185, 6728), (4205, 6696), (4495, 6264), (5046, 5580), (5220, 5394)]