257020140

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{433}}^1\times {\mathrm{761}}^1$

素因数の和:1219

約数の個数: 96

約数和(自身を含む): 777825216

約数和(自身を除く): 520805076

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 260, 390, 433, 761, 780, 866, 1299, 1522, 1732, 2165, 2283, 2598, 3044, 3805, 4330, 4566, 5196, 5629, 6495, 7610, 8660, 9132, 9893, 11258, 11415, 12990, 15220, 16887, 19786, 22516, 22830, 25980, 28145, 29679, 33774, 39572, 45660, 49465, 56290, 59358, 67548, 84435, 98930, 112580, 118716, 148395, 168870, 197860, 296790, 329513, 337740, 593580, 659026, 988539, 1318052, 1647565, 1977078, 3295130, 3954156, 4283669, 4942695, 6590260, 8567338, 9885390, 12851007, 17134676, 19770780, 21418345, 25702014, 42836690, 51404028, 64255035, 85673380, 128510070, 257020140]

約数ペア:

[(1, 257020140), (2, 128510070), (3, 85673380), (4, 64255035), (5, 51404028), (6, 42836690), (10, 25702014), (12, 21418345), (13, 19770780), (15, 17134676), (20, 12851007), (26, 9885390), (30, 8567338), (39, 6590260), (52, 4942695), (60, 4283669), (65, 3954156), (78, 3295130), (130, 1977078), (156, 1647565), (195, 1318052), (260, 988539), (390, 659026), (433, 593580), (761, 337740), (780, 329513), (866, 296790), (1299, 197860), (1522, 168870), (1732, 148395), (2165, 118716), (2283, 112580), (2598, 98930), (3044, 84435), (3805, 67548), (4330, 59358), (4566, 56290), (5196, 49465), (5629, 45660), (6495, 39572), (7610, 33774), (8660, 29679), (9132, 28145), (9893, 25980), (11258, 22830), (11415, 22516), (12990, 19786), (15220, 16887)]