28240380

素因数分解:

$2^2\times 3^3\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{241}}^1$

素因数の和:297

約数の個数: 192

約数和(自身を含む): 104079360

約数和(自身を除く): 75838980

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 27, 28, 30, 31, 35, 36, 42, 45, 54, 60, 62, 63, 70, 84, 90, 93, 105, 108, 124, 126, 135, 140, 155, 180, 186, 189, 210, 217, 241, 252, 270, 279, 310, 315, 372, 378, 420, 434, 465, 482, 540, 558, 620, 630, 651, 723, 756, 837, 868, 930, 945, 964, 1085, 1116, 1205, 1260, 1302, 1395, 1446, 1674, 1687, 1860, 1890, 1953, 2169, 2170, 2410, 2604, 2790, 2892, 3255, 3348, 3374, 3615, 3780, 3906, 4185, 4338, 4340, 4820, 5061, 5580, 5859, 6507, 6510, 6748, 7230, 7471, 7812, 8370, 8435, 8676, 9765, 10122, 10845, 11718, 13014, 13020, 14460, 14942, 15183, 16740, 16870, 19530, 20244, 21690, 22413, 23436, 25305, 26028, 29295, 29884, 30366, 32535, 33740, 37355, 39060, 43380, 44826, 45549, 50610, 52297, 58590, 60732, 65070, 67239, 74710, 75915, 89652, 91098, 101220, 104594, 112065, 117180, 130140, 134478, 149420, 151830, 156891, 182196, 201717, 209188, 224130, 227745, 261485, 268956, 303660, 313782, 336195, 403434, 448260, 455490, 470673, 522970, 627564, 672390, 784455, 806868, 910980, 941346, 1008585, 1045940, 1344780, 1412019, 1568910, 1882692, 2017170, 2353365, 2824038, 3137820, 4034340, 4706730, 5648076, 7060095, 9413460, 14120190, 28240380]

約数ペア:

[(1, 28240380), (2, 14120190), (3, 9413460), (4, 7060095), (5, 5648076), (6, 4706730), (7, 4034340), (9, 3137820), (10, 2824038), (12, 2353365), (14, 2017170), (15, 1882692), (18, 1568910), (20, 1412019), (21, 1344780), (27, 1045940), (28, 1008585), (30, 941346), (31, 910980), (35, 806868), (36, 784455), (42, 672390), (45, 627564), (54, 522970), (60, 470673), (62, 455490), (63, 448260), (70, 403434), (84, 336195), (90, 313782), (93, 303660), (105, 268956), (108, 261485), (124, 227745), (126, 224130), (135, 209188), (140, 201717), (155, 182196), (180, 156891), (186, 151830), (189, 149420), (210, 134478), (217, 130140), (241, 117180), (252, 112065), (270, 104594), (279, 101220), (310, 91098), (315, 89652), (372, 75915), (378, 74710), (420, 67239), (434, 65070), (465, 60732), (482, 58590), (540, 52297), (558, 50610), (620, 45549), (630, 44826), (651, 43380), (723, 39060), (756, 37355), (837, 33740), (868, 32535), (930, 30366), (945, 29884), (964, 29295), (1085, 26028), (1116, 25305), (1205, 23436), (1260, 22413), (1302, 21690), (1395, 20244), (1446, 19530), (1674, 16870), (1687, 16740), (1860, 15183), (1890, 14942), (1953, 14460), (2169, 13020), (2170, 13014), (2410, 11718), (2604, 10845), (2790, 10122), (2892, 9765), (3255, 8676), (3348, 8435), (3374, 8370), (3615, 7812), (3780, 7471), (3906, 7230), (4185, 6748), (4338, 6510), (4340, 6507), (4820, 5859), (5061, 5580)]