71774780

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{19}}^1\times {\mathrm{223}}^1$

素因数の和:280

約数の個数: 144

約数和(自身を含む): 200202240

約数和(自身を除く): 128427460

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 19, 20, 22, 28, 35, 38, 44, 55, 70, 76, 77, 95, 110, 121, 133, 140, 154, 190, 209, 220, 223, 242, 266, 308, 380, 385, 418, 446, 484, 532, 605, 665, 770, 836, 847, 892, 1045, 1115, 1210, 1330, 1463, 1540, 1561, 1694, 2090, 2230, 2299, 2420, 2453, 2660, 2926, 3122, 3388, 4180, 4235, 4237, 4460, 4598, 4906, 5852, 6244, 7315, 7805, 8470, 8474, 9196, 9812, 11495, 12265, 14630, 15610, 16093, 16940, 16948, 17171, 21185, 22990, 24530, 26983, 29260, 29659, 31220, 32186, 34342, 42370, 45980, 46607, 49060, 53966, 59318, 64372, 68684, 80465, 84740, 85855, 93214, 107932, 118636, 134915, 148295, 160930, 171710, 186428, 188881, 233035, 269830, 296590, 321860, 326249, 343420, 377762, 466070, 512677, 539660, 593180, 652498, 755524, 932140, 944405, 1025354, 1304996, 1631245, 1888810, 2050708, 2563385, 3262490, 3588739, 3777620, 5126770, 6524980, 7177478, 10253540, 14354956, 17943695, 35887390, 71774780]

約数ペア:

[(1, 71774780), (2, 35887390), (4, 17943695), (5, 14354956), (7, 10253540), (10, 7177478), (11, 6524980), (14, 5126770), (19, 3777620), (20, 3588739), (22, 3262490), (28, 2563385), (35, 2050708), (38, 1888810), (44, 1631245), (55, 1304996), (70, 1025354), (76, 944405), (77, 932140), (95, 755524), (110, 652498), (121, 593180), (133, 539660), (140, 512677), (154, 466070), (190, 377762), (209, 343420), (220, 326249), (223, 321860), (242, 296590), (266, 269830), (308, 233035), (380, 188881), (385, 186428), (418, 171710), (446, 160930), (484, 148295), (532, 134915), (605, 118636), (665, 107932), (770, 93214), (836, 85855), (847, 84740), (892, 80465), (1045, 68684), (1115, 64372), (1210, 59318), (1330, 53966), (1463, 49060), (1540, 46607), (1561, 45980), (1694, 42370), (2090, 34342), (2230, 32186), (2299, 31220), (2420, 29659), (2453, 29260), (2660, 26983), (2926, 24530), (3122, 22990), (3388, 21185), (4180, 17171), (4235, 16948), (4237, 16940), (4460, 16093), (4598, 15610), (4906, 14630), (5852, 12265), (6244, 11495), (7315, 9812), (7805, 9196), (8470, 8474)]