81193080

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{149}}^1\times {\mathrm{239}}^1$

素因数の和:421

約数の個数: 128

約数和(自身を含む): 259200000

約数和(自身を除く): 178006920

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 19, 20, 24, 30, 38, 40, 57, 60, 76, 95, 114, 120, 149, 152, 190, 228, 239, 285, 298, 380, 447, 456, 478, 570, 596, 717, 745, 760, 894, 956, 1140, 1192, 1195, 1434, 1490, 1788, 1912, 2235, 2280, 2390, 2831, 2868, 2980, 3576, 3585, 4470, 4541, 4780, 5662, 5736, 5960, 7170, 8493, 8940, 9082, 9560, 11324, 13623, 14155, 14340, 16986, 17880, 18164, 22648, 22705, 27246, 28310, 28680, 33972, 35611, 36328, 42465, 45410, 54492, 56620, 67944, 68115, 71222, 84930, 90820, 106833, 108984, 113240, 136230, 142444, 169860, 178055, 181640, 213666, 272460, 284888, 339720, 356110, 427332, 534165, 544920, 676609, 712220, 854664, 1068330, 1353218, 1424440, 2029827, 2136660, 2706436, 3383045, 4059654, 4273320, 5412872, 6766090, 8119308, 10149135, 13532180, 16238616, 20298270, 27064360, 40596540, 81193080]

約数ペア:

[(1, 81193080), (2, 40596540), (3, 27064360), (4, 20298270), (5, 16238616), (6, 13532180), (8, 10149135), (10, 8119308), (12, 6766090), (15, 5412872), (19, 4273320), (20, 4059654), (24, 3383045), (30, 2706436), (38, 2136660), (40, 2029827), (57, 1424440), (60, 1353218), (76, 1068330), (95, 854664), (114, 712220), (120, 676609), (149, 544920), (152, 534165), (190, 427332), (228, 356110), (239, 339720), (285, 284888), (298, 272460), (380, 213666), (447, 181640), (456, 178055), (478, 169860), (570, 142444), (596, 136230), (717, 113240), (745, 108984), (760, 106833), (894, 90820), (956, 84930), (1140, 71222), (1192, 68115), (1195, 67944), (1434, 56620), (1490, 54492), (1788, 45410), (1912, 42465), (2235, 36328), (2280, 35611), (2390, 33972), (2831, 28680), (2868, 28310), (2980, 27246), (3576, 22705), (3585, 22648), (4470, 18164), (4541, 17880), (4780, 16986), (5662, 14340), (5736, 14155), (5960, 13623), (7170, 11324), (8493, 9560), (8940, 9082)]