71072540

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{347}}^1$

素因数の和:400

約数の個数: 144

約数和(自身を含む): 199946880

約数和(自身を除く): 128874340

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 19, 20, 22, 28, 35, 38, 44, 49, 55, 70, 76, 77, 95, 98, 110, 133, 140, 154, 190, 196, 209, 220, 245, 266, 308, 347, 380, 385, 418, 490, 532, 539, 665, 694, 770, 836, 931, 980, 1045, 1078, 1330, 1388, 1463, 1540, 1735, 1862, 2090, 2156, 2429, 2660, 2695, 2926, 3470, 3724, 3817, 4180, 4655, 4858, 5390, 5852, 6593, 6940, 7315, 7634, 9310, 9716, 10241, 10780, 12145, 13186, 14630, 15268, 17003, 18620, 19085, 20482, 24290, 26372, 26719, 29260, 32965, 34006, 38170, 40964, 46151, 48580, 51205, 53438, 65930, 68012, 72523, 76340, 85015, 92302, 102410, 106876, 131860, 133595, 145046, 170030, 184604, 187033, 204820, 230755, 267190, 290092, 323057, 340060, 362615, 374066, 461510, 507661, 534380, 646114, 725230, 748132, 923020, 935165, 1015322, 1292228, 1450460, 1615285, 1870330, 2030644, 2538305, 3230570, 3553627, 3740660, 5076610, 6461140, 7107254, 10153220, 14214508, 17768135, 35536270, 71072540]

約数ペア:

[(1, 71072540), (2, 35536270), (4, 17768135), (5, 14214508), (7, 10153220), (10, 7107254), (11, 6461140), (14, 5076610), (19, 3740660), (20, 3553627), (22, 3230570), (28, 2538305), (35, 2030644), (38, 1870330), (44, 1615285), (49, 1450460), (55, 1292228), (70, 1015322), (76, 935165), (77, 923020), (95, 748132), (98, 725230), (110, 646114), (133, 534380), (140, 507661), (154, 461510), (190, 374066), (196, 362615), (209, 340060), (220, 323057), (245, 290092), (266, 267190), (308, 230755), (347, 204820), (380, 187033), (385, 184604), (418, 170030), (490, 145046), (532, 133595), (539, 131860), (665, 106876), (694, 102410), (770, 92302), (836, 85015), (931, 76340), (980, 72523), (1045, 68012), (1078, 65930), (1330, 53438), (1388, 51205), (1463, 48580), (1540, 46151), (1735, 40964), (1862, 38170), (2090, 34006), (2156, 32965), (2429, 29260), (2660, 26719), (2695, 26372), (2926, 24290), (3470, 20482), (3724, 19085), (3817, 18620), (4180, 17003), (4655, 15268), (4858, 14630), (5390, 13186), (5852, 12145), (6593, 10780), (6940, 10241), (7315, 9716), (7634, 9310)]