248687580

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^2\times {\mathrm{227}}^1$

素因数の和:320

約数の個数: 144

約数和(自身を含む): 760717440

約数和(自身を除く): 512029860

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 19, 20, 30, 31, 38, 57, 60, 62, 76, 93, 95, 114, 124, 155, 186, 190, 227, 228, 285, 310, 372, 380, 454, 465, 570, 589, 620, 681, 908, 930, 961, 1135, 1140, 1178, 1362, 1767, 1860, 1922, 2270, 2356, 2724, 2883, 2945, 3405, 3534, 3844, 4313, 4540, 4805, 5766, 5890, 6810, 7037, 7068, 8626, 8835, 9610, 11532, 11780, 12939, 13620, 14074, 14415, 17252, 17670, 18259, 19220, 21111, 21565, 25878, 28148, 28830, 35185, 35340, 36518, 42222, 43130, 51756, 54777, 57660, 64695, 70370, 73036, 84444, 86260, 91295, 105555, 109554, 129390, 133703, 140740, 182590, 211110, 218147, 219108, 258780, 267406, 273885, 365180, 401109, 422220, 436294, 534812, 547770, 654441, 668515, 802218, 872588, 1090735, 1095540, 1308882, 1337030, 1604436, 2005545, 2181470, 2617764, 2674060, 3272205, 4011090, 4144793, 4362940, 6544410, 8022180, 8289586, 12434379, 13088820, 16579172, 20723965, 24868758, 41447930, 49737516, 62171895, 82895860, 124343790, 248687580]

約数ペア:

[(1, 248687580), (2, 124343790), (3, 82895860), (4, 62171895), (5, 49737516), (6, 41447930), (10, 24868758), (12, 20723965), (15, 16579172), (19, 13088820), (20, 12434379), (30, 8289586), (31, 8022180), (38, 6544410), (57, 4362940), (60, 4144793), (62, 4011090), (76, 3272205), (93, 2674060), (95, 2617764), (114, 2181470), (124, 2005545), (155, 1604436), (186, 1337030), (190, 1308882), (227, 1095540), (228, 1090735), (285, 872588), (310, 802218), (372, 668515), (380, 654441), (454, 547770), (465, 534812), (570, 436294), (589, 422220), (620, 401109), (681, 365180), (908, 273885), (930, 267406), (961, 258780), (1135, 219108), (1140, 218147), (1178, 211110), (1362, 182590), (1767, 140740), (1860, 133703), (1922, 129390), (2270, 109554), (2356, 105555), (2724, 91295), (2883, 86260), (2945, 84444), (3405, 73036), (3534, 70370), (3844, 64695), (4313, 57660), (4540, 54777), (4805, 51756), (5766, 43130), (5890, 42222), (6810, 36518), (7037, 35340), (7068, 35185), (8626, 28830), (8835, 28148), (9610, 25878), (11532, 21565), (11780, 21111), (12939, 19220), (13620, 18259), (14074, 17670), (14415, 17252)]