81733960

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{223}}^1$

素因数の和:276

約数の個数: 192

約数和(自身を含む): 248209920

約数和(自身を除く): 166475960

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 17, 20, 22, 28, 34, 35, 40, 44, 49, 55, 56, 68, 70, 77, 85, 88, 98, 110, 119, 136, 140, 154, 170, 187, 196, 220, 223, 238, 245, 280, 308, 340, 374, 385, 392, 440, 446, 476, 490, 539, 595, 616, 680, 748, 770, 833, 892, 935, 952, 980, 1078, 1115, 1190, 1309, 1496, 1540, 1561, 1666, 1784, 1870, 1960, 2156, 2230, 2380, 2453, 2618, 2695, 3080, 3122, 3332, 3740, 3791, 4165, 4312, 4460, 4760, 4906, 5236, 5390, 6244, 6545, 6664, 7480, 7582, 7805, 8330, 8920, 9163, 9812, 10472, 10780, 10927, 12265, 12488, 13090, 15164, 15610, 16660, 17171, 18326, 18955, 19624, 21560, 21854, 24530, 26180, 26537, 30328, 31220, 33320, 34342, 36652, 37910, 41701, 43708, 45815, 49060, 52360, 53074, 54635, 62440, 68684, 73304, 75820, 83402, 85855, 87416, 91630, 98120, 106148, 109270, 120197, 132685, 137368, 151640, 166804, 171710, 183260, 185759, 208505, 212296, 218540, 240394, 265370, 291907, 333608, 343420, 366520, 371518, 417010, 437080, 480788, 530740, 583814, 600985, 686840, 743036, 834020, 928795, 961576, 1061480, 1167628, 1201970, 1459535, 1486072, 1668040, 1857590, 2043349, 2335256, 2403940, 2919070, 3715180, 4086698, 4807880, 5838140, 7430360, 8173396, 10216745, 11676280, 16346792, 20433490, 40866980, 81733960]

約数ペア:

[(1, 81733960), (2, 40866980), (4, 20433490), (5, 16346792), (7, 11676280), (8, 10216745), (10, 8173396), (11, 7430360), (14, 5838140), (17, 4807880), (20, 4086698), (22, 3715180), (28, 2919070), (34, 2403940), (35, 2335256), (40, 2043349), (44, 1857590), (49, 1668040), (55, 1486072), (56, 1459535), (68, 1201970), (70, 1167628), (77, 1061480), (85, 961576), (88, 928795), (98, 834020), (110, 743036), (119, 686840), (136, 600985), (140, 583814), (154, 530740), (170, 480788), (187, 437080), (196, 417010), (220, 371518), (223, 366520), (238, 343420), (245, 333608), (280, 291907), (308, 265370), (340, 240394), (374, 218540), (385, 212296), (392, 208505), (440, 185759), (446, 183260), (476, 171710), (490, 166804), (539, 151640), (595, 137368), (616, 132685), (680, 120197), (748, 109270), (770, 106148), (833, 98120), (892, 91630), (935, 87416), (952, 85855), (980, 83402), (1078, 75820), (1115, 73304), (1190, 68684), (1309, 62440), (1496, 54635), (1540, 53074), (1561, 52360), (1666, 49060), (1784, 45815), (1870, 43708), (1960, 41701), (2156, 37910), (2230, 36652), (2380, 34342), (2453, 33320), (2618, 31220), (2695, 30328), (3080, 26537), (3122, 26180), (3332, 24530), (3740, 21854), (3791, 21560), (4165, 19624), (4312, 18955), (4460, 18326), (4760, 17171), (4906, 16660), (5236, 15610), (5390, 15164), (6244, 13090), (6545, 12488), (6664, 12265), (7480, 10927), (7582, 10780), (7805, 10472), (8330, 9812), (8920, 9163)]