257031180

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{137}}^1\times {\mathrm{1489}}^1$

素因数の和:1648

約数の個数: 144

約数和(自身を含む): 898148160

約数和(自身を除く): 641116980

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 105, 126, 137, 140, 180, 210, 252, 274, 315, 411, 420, 548, 630, 685, 822, 959, 1233, 1260, 1370, 1489, 1644, 1918, 2055, 2466, 2740, 2877, 2978, 3836, 4110, 4467, 4795, 4932, 5754, 5956, 6165, 7445, 8220, 8631, 8934, 9590, 10423, 11508, 12330, 13401, 14385, 14890, 17262, 17868, 19180, 20846, 22335, 24660, 26802, 28770, 29780, 31269, 34524, 41692, 43155, 44670, 52115, 53604, 57540, 62538, 67005, 86310, 89340, 93807, 104230, 125076, 134010, 156345, 172620, 187614, 203993, 208460, 268020, 312690, 375228, 407986, 469035, 611979, 625380, 815972, 938070, 1019965, 1223958, 1427951, 1835937, 1876140, 2039930, 2447916, 2855902, 3059895, 3671874, 4079860, 4283853, 5711804, 6119790, 7139755, 7343748, 8567706, 9179685, 12239580, 12851559, 14279510, 17135412, 18359370, 21419265, 25703118, 28559020, 36718740, 42838530, 51406236, 64257795, 85677060, 128515590, 257031180]

約数ペア:

[(1, 257031180), (2, 128515590), (3, 85677060), (4, 64257795), (5, 51406236), (6, 42838530), (7, 36718740), (9, 28559020), (10, 25703118), (12, 21419265), (14, 18359370), (15, 17135412), (18, 14279510), (20, 12851559), (21, 12239580), (28, 9179685), (30, 8567706), (35, 7343748), (36, 7139755), (42, 6119790), (45, 5711804), (60, 4283853), (63, 4079860), (70, 3671874), (84, 3059895), (90, 2855902), (105, 2447916), (126, 2039930), (137, 1876140), (140, 1835937), (180, 1427951), (210, 1223958), (252, 1019965), (274, 938070), (315, 815972), (411, 625380), (420, 611979), (548, 469035), (630, 407986), (685, 375228), (822, 312690), (959, 268020), (1233, 208460), (1260, 203993), (1370, 187614), (1489, 172620), (1644, 156345), (1918, 134010), (2055, 125076), (2466, 104230), (2740, 93807), (2877, 89340), (2978, 86310), (3836, 67005), (4110, 62538), (4467, 57540), (4795, 53604), (4932, 52115), (5754, 44670), (5956, 43155), (6165, 41692), (7445, 34524), (8220, 31269), (8631, 29780), (8934, 28770), (9590, 26802), (10423, 24660), (11508, 22335), (12330, 20846), (13401, 19180), (14385, 17868), (14890, 17262)]