15975540

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{409}}^1$

素因数の和:462

約数の個数: 144

約数和(自身を含む): 57308160

約数和(自身を除く): 41332620

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 31, 35, 36, 42, 45, 60, 62, 63, 70, 84, 90, 93, 105, 124, 126, 140, 155, 180, 186, 210, 217, 252, 279, 310, 315, 372, 409, 420, 434, 465, 558, 620, 630, 651, 818, 868, 930, 1085, 1116, 1227, 1260, 1302, 1395, 1636, 1860, 1953, 2045, 2170, 2454, 2604, 2790, 2863, 3255, 3681, 3906, 4090, 4340, 4908, 5580, 5726, 6135, 6510, 7362, 7812, 8180, 8589, 9765, 11452, 12270, 12679, 13020, 14315, 14724, 17178, 18405, 19530, 24540, 25358, 25767, 28630, 34356, 36810, 38037, 39060, 42945, 50716, 51534, 57260, 63395, 73620, 76074, 85890, 88753, 103068, 114111, 126790, 128835, 152148, 171780, 177506, 190185, 228222, 253580, 257670, 266259, 355012, 380370, 443765, 456444, 515340, 532518, 570555, 760740, 798777, 887530, 1065036, 1141110, 1331295, 1597554, 1775060, 2282220, 2662590, 3195108, 3993885, 5325180, 7987770, 15975540]

約数ペア:

[(1, 15975540), (2, 7987770), (3, 5325180), (4, 3993885), (5, 3195108), (6, 2662590), (7, 2282220), (9, 1775060), (10, 1597554), (12, 1331295), (14, 1141110), (15, 1065036), (18, 887530), (20, 798777), (21, 760740), (28, 570555), (30, 532518), (31, 515340), (35, 456444), (36, 443765), (42, 380370), (45, 355012), (60, 266259), (62, 257670), (63, 253580), (70, 228222), (84, 190185), (90, 177506), (93, 171780), (105, 152148), (124, 128835), (126, 126790), (140, 114111), (155, 103068), (180, 88753), (186, 85890), (210, 76074), (217, 73620), (252, 63395), (279, 57260), (310, 51534), (315, 50716), (372, 42945), (409, 39060), (420, 38037), (434, 36810), (465, 34356), (558, 28630), (620, 25767), (630, 25358), (651, 24540), (818, 19530), (868, 18405), (930, 17178), (1085, 14724), (1116, 14315), (1227, 13020), (1260, 12679), (1302, 12270), (1395, 11452), (1636, 9765), (1860, 8589), (1953, 8180), (2045, 7812), (2170, 7362), (2454, 6510), (2604, 6135), (2790, 5726), (2863, 5580), (3255, 4908), (3681, 4340), (3906, 4090)]