278401680

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{433}}^1$

素因数の和:518

約数の個数: 240

約数和(自身を含む): 1007435520

約数和(自身を除く): 729033840

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 19, 20, 24, 30, 36, 38, 40, 45, 47, 48, 57, 60, 72, 76, 80, 90, 94, 95, 114, 120, 141, 144, 152, 171, 180, 188, 190, 228, 235, 240, 282, 285, 304, 342, 360, 376, 380, 423, 433, 456, 470, 564, 570, 684, 705, 720, 752, 760, 846, 855, 866, 893, 912, 940, 1128, 1140, 1299, 1368, 1410, 1520, 1692, 1710, 1732, 1786, 1880, 2115, 2165, 2256, 2280, 2598, 2679, 2736, 2820, 3384, 3420, 3464, 3572, 3760, 3897, 4230, 4330, 4465, 4560, 5196, 5358, 5640, 6495, 6768, 6840, 6928, 7144, 7794, 8037, 8227, 8460, 8660, 8930, 10392, 10716, 11280, 12990, 13395, 13680, 14288, 15588, 16074, 16454, 16920, 17320, 17860, 19485, 20351, 20784, 21432, 24681, 25980, 26790, 31176, 32148, 32908, 33840, 34640, 35720, 38970, 40185, 40702, 41135, 42864, 49362, 51960, 53580, 61053, 62352, 64296, 65816, 71440, 74043, 77940, 80370, 81404, 82270, 98724, 101755, 103920, 107160, 122106, 123405, 128592, 131632, 148086, 155880, 160740, 162808, 164540, 183159, 197448, 203510, 214320, 244212, 246810, 296172, 305265, 311760, 321480, 325616, 329080, 366318, 370215, 386669, 394896, 407020, 488424, 493620, 592344, 610530, 642960, 658160, 732636, 740430, 773338, 814040, 915795, 976848, 987240, 1160007, 1184688, 1221060, 1465272, 1480860, 1546676, 1628080, 1831590, 1933345, 1974480, 2320014, 2442120, 2930544, 2961720, 3093352, 3480021, 3663180, 3866690, 4640028, 4884240, 5800035, 5923440, 6186704, 6960042, 7326360, 7733380, 9280056, 11600070, 13920084, 14652720, 15466760, 17400105, 18560112, 23200140, 27840168, 30933520, 34800210, 46400280, 55680336, 69600420, 92800560, 139200840, 278401680]

約数ペア:

[(1, 278401680), (2, 139200840), (3, 92800560), (4, 69600420), (5, 55680336), (6, 46400280), (8, 34800210), (9, 30933520), (10, 27840168), (12, 23200140), (15, 18560112), (16, 17400105), (18, 15466760), (19, 14652720), (20, 13920084), (24, 11600070), (30, 9280056), (36, 7733380), (38, 7326360), (40, 6960042), (45, 6186704), (47, 5923440), (48, 5800035), (57, 4884240), (60, 4640028), (72, 3866690), (76, 3663180), (80, 3480021), (90, 3093352), (94, 2961720), (95, 2930544), (114, 2442120), (120, 2320014), (141, 1974480), (144, 1933345), (152, 1831590), (171, 1628080), (180, 1546676), (188, 1480860), (190, 1465272), (228, 1221060), (235, 1184688), (240, 1160007), (282, 987240), (285, 976848), (304, 915795), (342, 814040), (360, 773338), (376, 740430), (380, 732636), (423, 658160), (433, 642960), (456, 610530), (470, 592344), (564, 493620), (570, 488424), (684, 407020), (705, 394896), (720, 386669), (752, 370215), (760, 366318), (846, 329080), (855, 325616), (866, 321480), (893, 311760), (912, 305265), (940, 296172), (1128, 246810), (1140, 244212), (1299, 214320), (1368, 203510), (1410, 197448), (1520, 183159), (1692, 164540), (1710, 162808), (1732, 160740), (1786, 155880), (1880, 148086), (2115, 131632), (2165, 128592), (2256, 123405), (2280, 122106), (2598, 107160), (2679, 103920), (2736, 101755), (2820, 98724), (3384, 82270), (3420, 81404), (3464, 80370), (3572, 77940), (3760, 74043), (3897, 71440), (4230, 65816), (4330, 64296), (4465, 62352), (4560, 61053), (5196, 53580), (5358, 51960), (5640, 49362), (6495, 42864), (6768, 41135), (6840, 40702), (6928, 40185), (7144, 38970), (7794, 35720), (8037, 34640), (8227, 33840), (8460, 32908), (8660, 32148), (8930, 31176), (10392, 26790), (10716, 25980), (11280, 24681), (12990, 21432), (13395, 20784), (13680, 20351), (14288, 19485), (15588, 17860), (16074, 17320), (16454, 16920)]