15557709780

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{239}}^1\times {\mathrm{421}}^1\times {\mathrm{859}}^1$

素因数の和:1534

約数の個数: 144

約数和(自身を含む): 47557036800

約数和(自身を除く): 31999327020

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 239, 421, 478, 717, 842, 859, 956, 1195, 1263, 1434, 1684, 1718, 2105, 2151, 2390, 2526, 2577, 2868, 3436, 3585, 3789, 4210, 4295, 4302, 4780, 5052, 5154, 6315, 7170, 7578, 7731, 8420, 8590, 8604, 10308, 10755, 12630, 12885, 14340, 15156, 15462, 17180, 18945, 21510, 25260, 25770, 30924, 37890, 38655, 43020, 51540, 75780, 77310, 100619, 154620, 201238, 205301, 301857, 361639, 402476, 410602, 503095, 603714, 615903, 723278, 821204, 905571, 1006190, 1026505, 1084917, 1207428, 1231806, 1446556, 1509285, 1808195, 1811142, 1847709, 2012380, 2053010, 2169834, 2463612, 3018570, 3079515, 3254751, 3616390, 3622284, 3695418, 4106020, 4339668, 4527855, 5424585, 6037140, 6159030, 6509502, 7232780, 7390836, 9055710, 9238545, 10849170, 12318060, 13019004, 16273755, 18111420, 18477090, 21698340, 32547510, 36954180, 65095020, 86431721, 172863442, 259295163, 345726884, 432158605, 518590326, 777885489, 864317210, 1037180652, 1296475815, 1555770978, 1728634420, 2592951630, 3111541956, 3889427445, 5185903260, 7778854890, 15557709780]

約数ペア:

[(1, 15557709780), (2, 7778854890), (3, 5185903260), (4, 3889427445), (5, 3111541956), (6, 2592951630), (9, 1728634420), (10, 1555770978), (12, 1296475815), (15, 1037180652), (18, 864317210), (20, 777885489), (30, 518590326), (36, 432158605), (45, 345726884), (60, 259295163), (90, 172863442), (180, 86431721), (239, 65095020), (421, 36954180), (478, 32547510), (717, 21698340), (842, 18477090), (859, 18111420), (956, 16273755), (1195, 13019004), (1263, 12318060), (1434, 10849170), (1684, 9238545), (1718, 9055710), (2105, 7390836), (2151, 7232780), (2390, 6509502), (2526, 6159030), (2577, 6037140), (2868, 5424585), (3436, 4527855), (3585, 4339668), (3789, 4106020), (4210, 3695418), (4295, 3622284), (4302, 3616390), (4780, 3254751), (5052, 3079515), (5154, 3018570), (6315, 2463612), (7170, 2169834), (7578, 2053010), (7731, 2012380), (8420, 1847709), (8590, 1811142), (8604, 1808195), (10308, 1509285), (10755, 1446556), (12630, 1231806), (12885, 1207428), (14340, 1084917), (15156, 1026505), (15462, 1006190), (17180, 905571), (18945, 821204), (21510, 723278), (25260, 615903), (25770, 603714), (30924, 503095), (37890, 410602), (38655, 402476), (43020, 361639), (51540, 301857), (75780, 205301), (77310, 201238), (100619, 154620)]